"Lost" databases and tables

Dec  9 00:00:16 midgard logrotate[18121]: #007mysqladmin: connect to server at 'localhost' failed
Dec  9 00:00:16 midgard logrotate[18121]: error: error running shared postrotate script for '/var/log/mysql/mysql.log /var/log/mysql/mysql-slow.log /var/log/mysql/mariadb-slow.log /var/log/mysql/error.log '
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] /usr/sbin/mysqld (mysqld 10.3.23-MariaDB-0+deb10u1) starting as process 56047 ...
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Warning] Could not increase number of max_open_files to more than 16364 (request: 32262)
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Using Linux native AIO
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Uses event mutexes
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Number of pools: 1
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Using SSE2 crc32 instructions
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Completed initialization of buffer pool
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Creating shared tablespace for temporary tables
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Waiting for purge to start
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: 10.3.23 started; log sequence number 5368327993; transaction id 6202
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
Dec  9 23:13:13 midgard mysqld[56047]: 2020-12-09 23:13:13 0 [Note] Plugin 'FEEDBACK' is disabled.
/r/mysql Thread Parent