The recommended fix did not solve the Install/Activate problem for me. I originally was running:
Ubuntu Server 14.0.4 (LTS)
Apache2 (2.4.7-1ubuntu4.1)
Mysql 5.5 (5.5.40-0ubuntu0.14.04.1)
PHP5 (5.5.9+dfsg-1ubuntu4.5)
Frontaccounting (2.3.22)
I noted the exact same behavior as discussed earlier, though even the go_debug = 2 had errors of its own that didn't appear on the page. The errors involved aren't particularly important, however, because I tried the same Frontaccounting install on Debian 7.7 and had no issues at all:
Debian Server 7.7
Apache2 (2.2.22-13+deb7u3)
Mysql 5.5 (5.5.40-0+wheezy1)
PHP5 (5.4.35-0+deb7u2)
Frontaccounting (2.3.22)
Perhaps this could be a PHP 5.5 issue? I did notice getting errors on the Ubuntu install that gzopen() wasn't a known function, even though phpinfo() showed zlib installed.