okay. All the tables automatically converted to read-only. so how to fix this issue.
i restored the databases with old backups and reinstalled mysql. But after that all the databases throwing some errors on error log.
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Uses event mutexes
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Compressed tables use zlib 1.2.7
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Using Linux native AIO
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Number of pools: 1
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Using SSE2 crc32 instructions
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Completed initialization of buffer pool
2022-01-12 16:37:01 140318089434880 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Highest supported file format is Barracuda.
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: 128 out of 128 rollback segments are active.
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Creating shared tablespace for temporary tables
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: Waiting for purge to start
2022-01-12 16:37:01 140318647867584 [Note] InnoDB: 5.7.36 started; log sequence number 1615526
2022-01-12 16:37:01 140317646907136 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2022-01-12 16:37:01 140317646907136 [Note] InnoDB: Buffer pool(s) load completed at 220112 16:37:01
2022-01-12 16:37:01 140318647867584 [Note] Plugin 'FEEDBACK' is disabled.
2022-01-12 16:37:01 140318647867584 [Note] Server socket created on IP: '::'.
2022-01-12 16:37:01 140318647867584 [Note] Reading of all Master_info entries succeeded
2022-01-12 16:37:01 140318647867584 [Note] Added new Master_info '' to hash table
2022-01-12 16:37:01 140318647867584 [Note] /usr/sbin/mysqld: ready for connections.
Version: '10.2.41-MariaDB' socket: '/var/lib/mysql/mysql.sock' port: 3306 MariaDB Server
2022-01-12 16:38:51 140318175745792 [Warning] Access denied for user 's99_mexicocity'@'localhost' (using password: YES)
2022-01-12 16:41:35 140318176052992 [Warning] Access denied for user 's99_srongest'@'localhost' (using password: YES)
2022-01-12 16:41:51 140318175438592 [Warning] Access denied for user 's99_facemask'@'localhost' (using password: YES)
2022-01-12 16:42:01 140318175438592 [Warning] Access denied for user 's99_facemask'@'localhost' (using password: YES)
2022-01-12 16:43:49 140318176052992 [Warning] Access denied for user 's99_techuserict'@'localhost' (using password: YES)
2022-01-12 16:44:04 140318175745792 [Warning] Access denied for user 's99_srongest'@'localhost' (using password: YES)
2022-01-12 16:45:36 140318176052992 [Warning] Access denied for user 's99_beauty'@'localhost' (using password: YES)
2022-01-12 16:48:24 140318176052992 [Warning] Access denied for user 's99_srongest'@'localhost' (using password: YES)
This error happened on all account databases. so please help us to recover on this situations.
