AH01974: could not connect to OCSP responder 'ocsp.comodoca.com'

I get a lof of error /var/log/apache2/error_log I wonder what it's all about? How can solve this problem? [Sat Apr 25 13:38:05.350828 2020] [ssl:error] [pid 20427:tid 47191871805184] AH01941: stapling_renew_response: responder error [Sat Apr 25 13:38:08.354574 2020] [ssl:error] [pid 2597:tid 47191842387712] (70007)The timeout specified has expired: [client 37.26.52.163:43586] AH01974: could not connect to OCSP responder 'ocsp.comodoca.com' [Sat Apr 25 13:38:08.354700 2020] [ssl:error] [pid 2597:tid 47191842387712] AH01941: stapling_renew_response: responder error [Sat Apr 25 13:38:15.005719 2020] [ssl:error] [pid 2724:tid 47191854995200] (70007)The timeout specified has expired: [client 5.191.53.104:46847] AH01974: could not connect to OCSP responder 'ocsp.comodoca.com'