Fatal error: SQL ERROR [ SQL_LAYER ]

The table 'only_error_messages' is full

CALLING PAGE

/catview.php&cat_id=tablebook&area_code=

SQL

INSERT INTO only_error_messages (`debug_backtrace`, `get`, `post`, `cookie`, `cart`, `manager`, `user`) VALUES ('

[2018-04-22 00:05:12 (EEST)] User Error:
SQL ERROR [ SQL_LAYER ]

Got error 28 from storage engine

CALLING PAGE

/catview.php&cat_id=tablebook&area_code=

SQL

SELECT b.id, b.BrandName, b.tech_name FROM only_good g INNER JOIN only_brand b ON b.id = g.Brand WHERE g.visible = 1 AND g.IsDeleted = 0 AND g.category_id IN (SELECT id FROM only_category WHERE parent_id=147 UNION SELECT 147) AND b.IsDeleted = 0 GROUP BY b.id ORDER BY b.BrandName
\n', 'a:2:{s:6:\"cat_id\";s:9:\"tablebook\";s:9:\"area_code\";s:0:\"\";}', 'a:0:{}', 'a:0:{}', NULL, 'N;', 'N;')
in /var/www/komod.ua/komod5/classes/db/mysql4.php on line 436

Warning: session_write_close() [function.session-write-close]: write failed: No space left on device (28) in /var/www/komod.ua/komod5/classes/session_manager.class.php on line 84

Warning: session_write_close() [function.session-write-close]: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in /var/www/komod.ua/komod5/classes/session_manager.class.php on line 84