Imported feed is not updating / No cron job

We have imported google calendar ics feed. It is not updating with cron now.
I recall how it used to be: I could see ai1ec cron job scheduled, now it is missing. I also see this error in wp debug.log:

[15-Oct-2021 01:00:06 UTC] WordPress database returned an error Duplicate entry 'ai1ec_xlock_ics_import_2' for key 'option_name' in response to INSERT INTOwp_optionsSEToption_name= 'ai1ec_xlock_ics_import_2',option_value= '{\"time\":1634259606,\"pid\":6222}',autoload= 0, executed do_action_ref_array('ai1ec_cron'), WP_Hook->do_action, WP_Hook->apply_filters, Ai1ec_Event_Callback_Abstract->run, Ai1ec_Registry_Object->dispatch, Ai1ecIcsConnectorPlugin->cron, Ai1ecIcsConnectorPlugin->update_ics_feed, Ai1ec_Compatibility_Xguard->acquire, Ai1ec_Dbi->query

Wording is not exact, it is partially translated.

There is no ai1ec_xlock_ics_import_2 option in wp_options table, but there is ai1ec_xlock_ics_import_1.

I have tried to deactivate and then activate the plugin, but it didn’t help.

What else can be done to make cron running? Maybe I can create cron with Crontrol plugin? Then I need hook name and arguments, can you help me with that?

I also tried to check my account at time.ly website (plugin settings page says I am logged in), but could not do this, because time.ly cannot find my email address, which is strange, because settings page shows my email address.

Can this be a problem?