ERR_TOO_MANY_REDIRECTS

Hi!
Searching Google for a while… and still cannot find the solution (turns me crazy)

In my check-out page (Woocommerce) I receive this error:
This webpage has a redirect loop
The webpage has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.
Here are some suggestions:
Reload this webpage later.
Learn more about this problem.
Error 310 (net::ERR_TOO_MANY_REDIRECTS): There were too many redirects.

I’ve tried to delete all the coockies… nothing happened (same for unplugging plugins).

Please, help me out!