This has never happened before on my other sites, but its happening for this one specific site only. On the wp-login.php page it says this documentation or try the support forums. And does not allow me to log in. I have reset the password. I have already checked my cookies are alright. And I can login to my other sites just fine. The Hosting staff said "I think the best thing to do would be to contact a developer since it seems like it is a coding issue with this file xml_rpc.class.php" " Unfortunately, there is not much i can do do right now, I am not able to login into the wordpress either. "
- Some guy offered 100 dollars to reinstall wordpress, since I cant install my self. - Contacted Hostgator they said to tell a coding expert. So my OBJECTIVE, is to get into wp-admin AT LEAST, and clean the cancer up with wordfence. Then I will do professional security team to look at it. BUT.... First I need to at least get inside the wp-login.php. But i can't due to cookie error mentioned in OP. Is there any tips to at least let me log inside? Then I can move on from there and continue the fixing. Thanks.
You must have ftp access to your own site. delete everything that isn't in wp-content and re-upload what you've deleted. To keep the site running with minimal disruption I'll usually upload the files into a new folder delete the old files move the new files into the old location
It has happened to me before, but unfortunately I had to fix it up losing all the information on my website and when you format the data base and you start again and I would advise contacting the director of the hosting resolve this issue so as not to lose all location information