Is it possible you or your host changed PHP or installed mod_security?
Perhaps it a newer version and you are not running v4.0 of PhpGedView?
If so, you may need to switch to webtrees since PGV has not been updated in a long time.
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Hitting "Edit" draws a white page.
Have used this same install for over 5 years with innumerable occasions of editing the config file.
Suddenly, it draws a white page.
Editing the Privacy file (Name.ged_priv.php) is fully functional but Edit config just returns a blank page.
Been using the software steadily with no other malfunctions noticed but went to make a change in the config and discovered this.
Cannot edit the GedCom config file.
Is it possible you or your host changed PHP or installed mod_security?
Perhaps it a newer version and you are not running v4.0 of PhpGedView?
If so, you may need to switch to webtrees since PGV has not been updated in a long time.