Basicauth
Basicauth was removed with u5CMS 12.7.0 because only sha512 and no longer sha1 is used. If basicauth must still work, a search-and-replace must be carried out across all u5CMS PHP files,searching for the string
hash('512',
exactly this string, the last character must be the comma!
replacing with the string
sha1(
exactly this string, the last character must an opening bracket!