Not receiving ads and errors in the logs

Briefly describe your issue:
Not receiving ads and errors in the logs.

What Operating System and Brave version are you using ( Menu --> About Brave )?
Operating System is Linux Mint 19.3 and the Brave version is 1.37.116 Chromium: 100.0.4896.127 (Official Build) (64-bit)

Is your browser wallet currently verified? (yes/no)
No

Are you using a VPN? (yes/no)
No

Are you in a supported region (see here for list of supported regions)?
Yes, I’m in Hungary

I get pop up ads in the early hours (7am - 10am) but after that I don’t get any pop up ads and I start receiving errors: publisher.cc(774)] Publisher info not found and publisher.cc(845)] Failed to retrieve publisher info while updating media duration.

There are days when I don’t get any BATs for viewing sponsored images. I get this error when it happens: creative_new_tab_page_ads_database_table.cc(580)] Failed to get creative new tab page ad. Today it happens without any error messages and I didn’t reach the 20 limit either.

I’ve created a new profile and I haven’t installed extensions, just kept the profile clean. The pop up ads problem seems to be gone, there are no error messages in the logs either. The sponsored images problem is still present.