Crawlers stuck in progress

Hi,

I setup a crawler for customer of mine and at first, it was working as expected. last time it run, several pages were blocked and I forced the recrawling of those pages. However, the crawler has been stuck in progress since 2 full days and I don’t understand what could be the issue here. Is there a known issue with the crawlers? Can you support me with this?

Thanks!

Fede