‘Cтатья не найдена в базе’ (article not found in database) or just a blank page whenever I ry to open an article

I’m using .ru domain, I can’t reach .se and .st domains.

I can open some articles but mostly I get this ‘cтатья не найдена в базе’ message. The articles I need were published long before the Indian case (mostly 90s-2010s).

I hoped uninstalling my sci-hub extention and installing it back would help but it didn’t.

If anyone knows what to do in this situation, please help.