Database Query Error:

Table './db_blitzortung/mybo_strikes' is marked as crashed and last (automatic?) repair failed

for query

SELECT SUM(distance) sum_dist, COUNT(distance) cnt_dist,  (s.part>0)  participated, time
				FROM mybo_strikes s
				WHERE time BETWEEN '2018-10-17 02:43:44' AND '2016-09-29 16:00:37'
				
				GROUP BY participated, DAYOFMONTH(time), HOUR(time), FLOOR(MINUTE(time) / 30)