phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7eec3862b25e7b8e8ef50ba4c2ae97a7', -1, 1519367675, 1519367675, '36dd8343', 0, 0, 0)

Line : 187
File : sessions.php