Log visibility could not be set:
$1
MediaWiki:Logdelete-failure/en
Revision visibility could not be updated:
$1
MediaWiki:Revdelete-failure/en
Log visibility set.
MediaWiki:Logdelete-success/en
Log entry could not be updated
MediaWiki:Articlefeedbackv5-invalid-log-update/en
Page [[:$1]] '''could not''' be deleted.
MediaWiki:Nuke-not-deleted/en
Lexeme '$1' could not be found.
MediaWiki:Wikibase-lexeme-mergelexemes-error-lexeme-not-found/en
Set visibility restrictions
MediaWiki:Revdelete-legend/en
Value could not be processed
MediaWiki:Bs-validator-value-not-recognized/en
Reminder could not be deleted.
MediaWiki:Bs-reminder-delete-error-unkown/en
Reminder could not be saved.
MediaWiki:Bs-reminder-save-error-unkown/en
Expiry could not be deleted.
MediaWiki:Bs-expiry-delete-error-unknown/en
Expiry could not be created.
MediaWiki:Bs-expiry-create-error/en
Expiry could not be updated.
MediaWiki:Bs-expiry-update-error/en
The file could not be uploaded: $1
MediaWiki:Bs-filesystemhelper-upload-err-code/en
Configuration file $1 could not be written!
MediaWiki:Bs-dynamic-settings-error-config-file-could-not-be-written/en
The changes could not be applied:
$1
MediaWiki:Tags-edit-failure/en
The Schema could not be updated
MediaWiki:Entityschema-error-schemaupdate-failed/en
The file could not be saved.
MediaWiki:Bs-filesystemhelper-save-base64-error/en
The file could not be uploaded.
MediaWiki:Bs-filesystemhelper-upload-base64-error/en
The URL could not be validated.
MediaWiki:Bs-validator-url-validation-not-approved/en
Your transaction could not be accepted.
MediaWiki:Php-response-declined/en
The page could not be unexpired
MediaWiki:Bs expiry-unexpire-unsuccess/en
The sitelink could not be saved.
MediaWiki:Wikibase-setsitelink-add-failed/en
The sitelink could not be removed.
MediaWiki:Wikibase-setsitelink-remove-failed/en
The sitelink could not be saved.
MediaWiki:Wikibase-api-failed-add-sitelink/en