Cant turn off no-index

Hello,
One of the websites I work on has dropped rankings dramatically within the last few weeks (after we started using Elementor with RankMath) and I couldn’t figure out why.

Yesterday I found out that the website’s homepage (among other less relevant pages) is marked as no-index. When I try to switch off the no-index check, it disappears, but when I refresh the page the no-index tag comes back.

I don’t know what else I can do, but I need this page to rank on Google.

Thanks,
Guga