CRE LOADED Admin section error / inaccessible - repost

I have 8 Cre Loaded Websites, all of them are identical but all the admin sections of the website except one are inaccessible due to one of the errors below. 1] Cannot connect to database 2] I forgot the username and password and my i lost access to my email account, so i cannot retrieve it. 3] Username and password is correct but does not take you to processing section. I really need somebody that can solve these problems. Duplicating and replicating the sole working site is also acceptable. THERE ARE ALTOGETHER 8 IDENTICAL SITES HOSTED ON 2 WEBHOSTS. ALL sites are in CRE LOADED and all ADMIN sections are not working.