Troubleshooting An "Unable to unlock tables" Error
This error can occur in the Utilities > Logs > Activity Log when the database backup automation operation is performed. The full error is either of the following:
Unable to unlock tables: HY000 2014 Cannot execute queries while other unbuffered queries are active
Unable to unlock tables: HY000 2030 This command is not supported in the prepared statement protocol yet
This arises on environments running PHP7.
A hotfix has been created which resolves the underlying issue. It can be downloaded from: