Errorlog after last update (27 jan)

Below is the series of errormessages in the log I get since 27 January with the latest update (running on PHP 7). Same series of messages every day. A nuisance, updraft seems to be working properly.

What is the problem, is it config or what?

Best, HansR

[Fri Jan 27 17:05:01.255567 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: PHP Fatal error: Uncaught Error: Call to undefined function get_plugins() in /var/www/clients/client13104/web5046/web/wp-content/plugins/updraftplus/includes/updraftplus-notices.php:279, referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875
[Fri Jan 27 17:05:01.367201 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: Stack trace:, referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875
[Fri Jan 27 17:05:01.367222 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: #0 /var/www/clients/client13104/web5046/web/wp-content/plugins/updraftplus/includes/updraft-notices.php(95): UpdraftPlus_Notices->wp_optimize_installed(), referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875
[Fri Jan 27 17:05:01.367223 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: #1 /var/www/clients/client13104/web5046/web/wp-content/plugins/updraftplus/includes/updraft-notices.php(55): Updraft_Notices->get_notice_data(false, ‘report-plain’), referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875
[Fri Jan 27 17:05:01.367235 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: #2 /var/www/clients/client13104/web5046/web/wp-content/plugins/updraftplus/backup.php(924): Updraft_Notices->do_notice(false, ‘report-plain’, true), referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875
[Fri Jan 27 17:05:01.367237 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: #3 /var/www/clients/client13104/web5046/web/wp-content/plugins/updraftplus/class-updraftplus.php(2759): UpdraftPlus_Backup->send_results_email(‘De backup is zo…’, Array), referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875
[Fri Jan 27 17:05:01.367238 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: #4 /var/www/clients/client13104/web5046/web/wp-content/plugins/updraftplus/class-updraftplus.php(1988): UpdraftPlus->backup_finish(1, true, true, 0), referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875
[Fri Jan 27 17:05:01.367240 2017] [fcgid:warn] [pid 27553] [client 46.235.42.63:49524] mod_fcgid: stderr: #5 /var/www/clients/client13104/web5046/web/wp-content in /var/www/clients/client13104/web5046/web/wp-content/plugins/updraftplus/includes/updraftplus-notices.php on line 279, referer: https://www.nietnaarsantiago.nl/wp-cron.php?doing_wp_cron=1485533016.5543410778045654296875