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 ('aff40ca7706e03dfacb4bf00d9c1e2a2', -1, 1555841577, 1555841577, '12e893d7', 38, 0, 0)

Line : 187
File : sessions.php