If I set error reporting to 'Development' I see the following error:
Fatal error: Call to undefined function MaxMind\Db\Reader\bcadd() in /var/www/vhosts/domainxyz.com/httpdocs/plugins/system/akgeoip/lib/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Decoder.php on line 252
I think the problem might be related to this:
GeoIP2 required
Looking at my php configure command I see. . .
mbregex' '--with-gd=shared' '--enable-bcmath=shared' '--enable-dba=shared' '
I have the same problem on Joomla 2.5 sites as well.
Also if I click on the ' Update the GeoLite2 Country database' button in the control panel I get a blank page.
A workaround is to temporarily rename this file: /plugins/system/admintools/admintools/pro.php
regards
Trevor