diff --git a/lib/private/share/share.php b/lib/private/share/share.php
index 9aea4677b5..c245f0f88a 100644
--- a/lib/private/share/share.php
+++ b/lib/private/share/share.php
@@ -599,7 +599,7 @@ class Share extends Constants {
 		if ($backend->isShareTypeAllowed($shareType) === false) {
 			$message = 'Sharing %s failed, because the backend does not allow shares from type %i';
 			$message_t = $l->t('Sharing %s failed, because the backend does not allow shares from type %i', array($itemSourceName, $shareType));
-			\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareType), \OCP\Util::ERROR);
+			\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareType), \OCP\Util::DEBUG);
 			throw new \Exception($message_t);
 		}
 
@@ -617,14 +617,14 @@ class Share extends Constants {
 			if (!$path) {
 				$message = 'Sharing %s failed, because the file does not exist';
 				$message_t = $l->t('Sharing %s failed, because the file does not exist', array($itemSourceName));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 			// verify that the user has share permission
 			if (!\OC\Files\Filesystem::isSharable($path)) {
 				$message = 'You are not allowed to share %s';
 				$message_t = $l->t('You are not allowed to share %s', array($itemSourceName));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 		}
@@ -637,7 +637,7 @@ class Share extends Constants {
 			foreach ($mounts as $mount) {
 				if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
 					$message = 'Sharing "' . $itemSourceName . '" failed, because it contains files shared with you!';
-					\OCP\Util::writeLog('OCP\Share', $message, \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', $message, \OCP\Util::DEBUG);
 					throw new \Exception($message);
 				}
 
@@ -654,13 +654,13 @@ class Share extends Constants {
 			if ($shareWith == $uidOwner) {
 				$message = 'Sharing %s failed, because the user %s is the item owner';
 				$message_t = $l->t('Sharing %s failed, because the user %s is the item owner', array($itemSourceName, $shareWith));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 			if (!\OC_User::userExists($shareWith)) {
 				$message = 'Sharing %s failed, because the user %s does not exist';
 				$message_t = $l->t('Sharing %s failed, because the user %s does not exist', array($itemSourceName, $shareWith));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 			if ($shareWithinGroupOnly) {
@@ -669,7 +669,7 @@ class Share extends Constants {
 					$message = 'Sharing %s failed, because the user '
 						.'%s is not a member of any groups that %s is a member of';
 					$message_t = $l->t('Sharing %s failed, because the user %s is not a member of any groups that %s is a member of', array($itemSourceName, $shareWith, $uidOwner));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith, $uidOwner), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith, $uidOwner), \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 				}
 			}
@@ -682,7 +682,7 @@ class Share extends Constants {
 				if ($checkExists['uid_owner'] != $uidOwner || $checkExists['share_type'] == $shareType) {
 					$message = 'Sharing %s failed, because this item is already shared with %s';
 					$message_t = $l->t('Sharing %s failed, because this item is already shared with %s', array($itemSourceName, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 				}
 			}
@@ -690,14 +690,14 @@ class Share extends Constants {
 			if (!\OC_Group::groupExists($shareWith)) {
 				$message = 'Sharing %s failed, because the group %s does not exist';
 				$message_t = $l->t('Sharing %s failed, because the group %s does not exist', array($itemSourceName, $shareWith));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 			if ($shareWithinGroupOnly && !\OC_Group::inGroup($uidOwner, $shareWith)) {
 				$message = 'Sharing %s failed, because '
 					.'%s is not a member of the group %s';
 				$message_t = $l->t('Sharing %s failed, because %s is not a member of the group %s', array($itemSourceName, $uidOwner, $shareWith));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner, $shareWith), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner, $shareWith), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 			// Check if the item source is already shared with the group, either from the same owner or a different user
@@ -710,7 +710,7 @@ class Share extends Constants {
 				if ($checkExists['uid_owner'] != $uidOwner || $checkExists['share_type'] == $shareType) {
 					$message = 'Sharing %s failed, because this item is already shared with %s';
 					$message_t = $l->t('Sharing %s failed, because this item is already shared with %s', array($itemSourceName, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 				}
 			}
@@ -750,7 +750,7 @@ class Share extends Constants {
 				if (\OCP\Util::isPublicLinkPasswordRequired() && empty($shareWith)) {
 					$message = 'You need to provide a password to create a public link, only protected links are allowed';
 					$message_t = $l->t('You need to provide a password to create a public link, only protected links are allowed');
-					\OCP\Util::writeLog('OCP\Share', $message, \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', $message, \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 				}
 
@@ -779,7 +779,7 @@ class Share extends Constants {
 			}
 			$message = 'Sharing %s failed, because sharing with links is not allowed';
 			$message_t = $l->t('Sharing %s failed, because sharing with links is not allowed', array($itemSourceName));
-			\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::ERROR);
+			\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::DEBUG);
 			throw new \Exception($message_t);
 		} else if ($shareType === self::SHARE_TYPE_REMOTE) {
 
@@ -790,7 +790,7 @@ class Share extends Constants {
 				$shareWith, $uidOwner, self::FORMAT_NONE, null, 1, true, true)) {
 					$message = 'Sharing %s failed, because this item is already shared with %s';
 					$message_t = $l->t('Sharing %s failed, because this item is already shared with %s', array($itemSourceName, $shareWith));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 			}
 
@@ -819,7 +819,7 @@ class Share extends Constants {
 			// Future share types need to include their own conditions
 			$message = 'Share type %s is not valid for %s';
 			$message_t = $l->t('Share type %s is not valid for %s', array($shareType, $itemSource));
-			\OCP\Util::writeLog('OCP\Share', sprintf($message, $shareType, $itemSource), \OCP\Util::ERROR);
+			\OCP\Util::writeLog('OCP\Share', sprintf($message, $shareType, $itemSource), \OCP\Util::DEBUG);
 			throw new \Exception($message_t);
 		}
 
@@ -1047,7 +1047,7 @@ class Share extends Constants {
 					$message = 'Setting permissions for %s failed,'
 						.' because the permissions exceed permissions granted to %s';
 					$message_t = $l->t('Setting permissions for %s failed, because the permissions exceed permissions granted to %s', array($itemSource, \OC_User::getUser()));
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource, \OC_User::getUser()), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource, \OC_User::getUser()), \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 				}
 			}
@@ -1110,7 +1110,7 @@ class Share extends Constants {
 		$message = 'Setting permissions for %s failed, because the item was not found';
 		$message_t = $l->t('Setting permissions for %s failed, because the item was not found', array($itemSource));
 
-		\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource), \OCP\Util::ERROR);
+		\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource), \OCP\Util::DEBUG);
 		throw new \Exception($message_t);
 	}
 
@@ -2158,7 +2158,7 @@ class Share extends Constants {
 				$message = 'Sharing %s failed, because the user %s is the original sharer';
 				$message_t = $l->t('Sharing %s failed, because the user %s is the original sharer', array($itemSourceName, $shareWith));
 
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $shareWith), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 		}
@@ -2170,7 +2170,7 @@ class Share extends Constants {
 					$message = 'Sharing %s failed, because the permissions exceed permissions granted to %s';
 					$message_t = $l->t('Sharing %s failed, because the permissions exceed permissions granted to %s', array($itemSourceName, $uidOwner));
 
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName, $uidOwner), \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 				} else {
 					// TODO Don't check if inside folder
@@ -2196,7 +2196,7 @@ class Share extends Constants {
 				$message = 'Sharing %s failed, because resharing is not allowed';
 				$message_t = $l->t('Sharing %s failed, because resharing is not allowed', array($itemSourceName));
 
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSourceName), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 		} else {
@@ -2209,7 +2209,7 @@ class Share extends Constants {
 				$message = 'Sharing %s failed, because the sharing backend for '
 					.'%s could not find its source';
 				$message_t = $l->t('Sharing %s failed, because the sharing backend for %s could not find its source', array($itemSource, $itemType));
-				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource, $itemType), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource, $itemType), \OCP\Util::DEBUG);
 				throw new \Exception($message_t);
 			}
 			if ($backend instanceof \OCP\Share_Backend_File_Dependent) {
@@ -2224,7 +2224,7 @@ class Share extends Constants {
 					$message = 'Sharing %s failed, because the file could not be found in the file cache';
 					$message_t = $l->t('Sharing %s failed, because the file could not be found in the file cache', array($itemSource));
 
-					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('OCP\Share', sprintf($message, $itemSource), \OCP\Util::DEBUG);
 					throw new \Exception($message_t);
 				}
 			} else {