How to update the "next emails" widget?

Your software
My Mautic version is: 2.15.3
My PHP version is: 7.2

Your problem
In the dashboard I’m still having “next emails” dated on January 15. How could I clear this list and have it updated?

Thanks for your help!

These errors are showing in the log:

Steps I have tried to fix the problem: I cleared the cache but that didn’t change anything