I used VPN before, and the problem also appears after disabling it. It seems a problem with my country I guess, I don't in another device, but when I check on another explorer like Blockchain, com, I get the same problem even use or without VPN.
I don't clear cache and cookies atm.
Well, use a different browser than the one you are currently using, delete caches and cookies for your current browser, or try to use a VPN other than the one you are using, and it must be popular and good, or use another device or another Internet provider, and if all this does not work, use another explorer as mentioned by @Potato Chips, for me, Blockchair.com has been working well for me for ages, and I've never really encountered that annoying captcha problem, But in many cases, I encountered on other sites when I was using a weak VPN and connected to a country with a weak connection speed.