phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table 'phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('313b0c7cb00b1ba511e56557af11da97', -1, 1492990158, 1492990158, '36920510', 6, 0, 0)

Line : 187
File : sessions.php