Alex, I made the next operations:
1. I disabled all plugins except wallets and tip the author: Not working, the same, the button appears but when clicking the form is empty.
2. I switched to Twenty Seventeen theme with all plugins disabled except wallets and tip the author: Not working, the same, the button appears but when clicking the form is empty.
3. I enabled debugging log and display with other plugins enabled and without: Nothin special related with wallets or tip the author, no critical errors.
Just in Opera browser, in the console I’ve got:
Failed to load resource: net::ERR_CONTENT_DECODING_FAILED/xxx/xxx/?__wallets_apiversion=2&__wallets_action=get_nonces&_=1528983453027:1
Failed to load resource: net::ERR_CONTENT_DECODING_FAILED
/xxx/xxx/?__wallets_apiversion=2&__wallets_action=get_coins_info:1
4. I tested disabling modsecurity in cpanel: Not working, the same issue.
Something else I can try?
Thank you in advance,
Best regards
PS: I updated to latest version of wallets plugin