No Log In in old installation

Permalink
Hello dear concrete people,

I have a problem with an old installation of concrete (think it is 5.6.3) A theater I worked with has their archive on this version and now I try to get in there, but there is no chance. Maybe somebody can help me. The Error is

Fatal error: Cannot unset $this in /homepages/8/d216938472/htdocs/ttcms/concrete/libraries/3rdparty/adodb/adodb-xmlschema03.inc.php on line 178

I am not a coder, so hopefully there is a way to get in.
Thank you very much

 
JohntheFish replied on at Permalink Best Answer Reply
JohntheFish
That may be a php version incompatibility cause by running on php7+. Make sure the site is running on a php version <= php5.6.x.

You should be able to configure that on your host cPanel.
ludo replied on at Permalink Reply
Thank you very much. That worked. For their future safety maybe I should update concrete now.
JohntheFish replied on at Permalink Reply
JohntheFish
You can run the dashboard update to 5.6.3.5, then a manual update to 5.6.4 from GitHub, which is compatible with php up to php7.2. However, to run under php7.2 you may need to make some small code changes for themes and addons to get everything working properly.