When Backing Up #1062 - Duplicate entry '?' for key error occurs during the process of creating a backup.

[McBulge]

Hello, I get the following error while loading the backup I received. The error is MySQL output: Documents #1062 - Duplicate entry '?' for key 'termunique'. In my regular database, there are 90 tables, but when I try to upload it here, I encounter an error and only 64 tables are loaded.