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 ('8f4a06e4c8cb72e116d18b349dfb790d', -1, 1529624742, 1529624742, '36a2a59e', -11, 0, 0)

Line : 187
File : sessions.php