Že něco bude s db asi napovídá i chybový pokus o dump:
mysqldump -p moodle
mysqldump: Got error: 1932: "Table 'moodle.mdl_tag_correlation' doesn't exist in engine" when using LOCK TABLES
mysqldump -p moodle
mysqldump: Got error: 1932: "Table 'moodle.mdl_tag_correlation' doesn't exist in engine" when using LOCK TABLES