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 ('9267f5c359af2a6ad170b3373327b7a7', -1, 1542491926, 1542491926, '365ab978', 13, 0, 0)

Line : 186
File : sessions.php