This issue occurs because there’s an incorrect reCaptcha site key in HivePress/Settings/Integrations section. Please clear the site key field or set the correct key, all buttons and links will start working.
If possible set topic titles in English so others will be able to search the resolved issues, for example you can use Google Translate.
It’s still incorrect, this error is displayed on your site:
Error: Invalid site key or not loaded in api.js: 6Lc1I8gUAAAAAAGSS6gNB7UGw6dDCHRdqeR1fLrE
This reCaptcha key you entered in HivePress/Settings/Integrations section is either incorrect or it’s not allowed for your site domain. Please follow these instructions to get a valid key https://support.webasyst.ru/shop-script/18935/recaptcha/ (first 4 steps, just to get the site key and the secret key).