I have downloaded GeoLite2-ASN.mmdb from MaxMind site, and put it in the /var/www/html/misc as instructed. For some reason though, Mamoto does not seem recognize it. DBIP / GeoIP 2 (Php) just keeps saying "Not installed".

If I change the filename to GeoIP2-City.mmdb, Mamoto tries to load up the file with warnings, and DBIP / GeoIP 2 (Php) says "Broken", as more or less expected, so the folder seems to be correct and file permissions fine, just for some reason Mamoto seems to ignore the file when it's named GeoLite2-ASN.mmdb, even though according to documentation it should work.