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 ('8fc77a3ac4cf78817dffd2a83f9fbe0c', -1, 1558431775, 1558431775, '36e2045b', 6, 0, 0)

Line : 187
File : sessions.php