Verb wrong tense (#20708)

* Verb wrong tense

Clearly using the present tense is incorrect for an error message and it should be the past tense

* no error

administrator/language/en-GB/en-GB.com_media.ini

@@ -23,12 +23,12 @@ COM_MEDIA_DETAIL_VIEW="Detail View"
 COM_MEDIA_DIRECTORY="Folder"
 COM_MEDIA_DIRECTORY_UP="Folder Up"
 COM_MEDIA_ERROR_BAD_REQUEST="Bad Request"
-COM_MEDIA_ERROR_BEFORE_DELETE_0="Some error occurs before deleting the media."
-COM_MEDIA_ERROR_BEFORE_DELETE_1="An error occurs before deleting the media: %s"
-COM_MEDIA_ERROR_BEFORE_DELETE_MORE="Some errors occur before deleting the media: %s"
-COM_MEDIA_ERROR_BEFORE_SAVE_0="Some error occurs before saving the media."
-COM_MEDIA_ERROR_BEFORE_SAVE_1="An error occurs before saving the media: %s"
-COM_MEDIA_ERROR_BEFORE_SAVE_MORE="Some errors occur before saving the media: %s"
+COM_MEDIA_ERROR_BEFORE_DELETE_0="No error occurred before deleting the media."
+COM_MEDIA_ERROR_BEFORE_DELETE_1="An error occurred before deleting the media: %s"
+COM_MEDIA_ERROR_BEFORE_DELETE_MORE="Some errors occurred before deleting the media: %s"
+COM_MEDIA_ERROR_BEFORE_SAVE_0="No error occurred before saving the media."
+COM_MEDIA_ERROR_BEFORE_SAVE_1="An error occurred before saving the media: %s"
+COM_MEDIA_ERROR_BEFORE_SAVE_MORE="Some errors occurred before saving the media: %s"
 COM_MEDIA_ERROR_CREATE_NOT_PERMITTED="Create not permitted."
 COM_MEDIA_ERROR_FILE_EXISTS="File already exists."
 COM_MEDIA_ERROR_UNABLE_TO_CREATE_FOLDER_WARNDIRNAME="Unable to create folder. Folder name must only have alphanumeric characters and no spaces."