I’m trying to resurrect a VERY old WP site, its based on the TwentyEleven theme so I suspect it is from that era.. A bunch of us put a whole LOT of work into this website and we’d hoped to be able to get it running on our development VM and gracefully upgrade it to current.. Loaded the MySql sql on the database and set up the wp-config.php.. KABOOM.. Nothing but a full white page of various errors.. I’d suspected there would be some, but yow!!
Next question, if this is feasable.. We’d like to do a clean install of the current WP version, download TwentyEleven and pick/choose from the old install the artwork and stuff and apply to the new install, getting it as close as possible to the old site.. It doesn’t appear we can get the old code to run in a modern environment..
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The first thing I would check is the php version. The existing web site may have a “legacy” version. A lot of stuff has been updated, and WordPress 6.4 (I think it was) stopped supporting php older than 7.0.
If the old website still works on the old php installation, you can try doing Tools -> Export of the posts, pages and other contents.
Or you could try putting an older version of php on your VM and see if you can get it working.
In your wp-config.php, add :
error_reporting(E_ALL);
ini_set(“display_errors”, 1);
Should give you a strong clue of what is going on.