What's "/url of file"?
And what are the permissions of it and it's parent folder?

'/url of file' is a url on our site. It's the directory where B2 is trying to put the file. Felt kinda revealing to post a big link into our directories. Just being paranoid.

The full error message reads:
Warning: move_uploaded_file(/home/gameluv/public_html/media/users/cath52/lr22.jpg): failed to open stream: Permission denied in /home/gameluv/public_html/inc/CONTROL/files/files.php on line 1037

As for permissions, I'm unsure. The permissions for the parent folder 'public_html' are set on the server as 777.

And permissions for "cath52"? Those are probably 775 and therefor it fails.

Go into your evo_settings table and add the tuples
fm_default_chmod_file, 666
and
fm_default_chmod_dir, 777
therein (the name into set_name and the value (666/777) into the set_value column).
These settings will be editable in the b2evo admin in a later version and default to 664/775.

Those settings get used only for new created directories/files, so you have to change the chmod setting of the already existing ones (like the one above).

Ok, I've given it my all and failed...

how do I get to the 'evo_settings table'? Where is it located and how can I edit it? Thanks.

Yours truly,

A Super Noob.

Go to your database with e.g. phpMyAdmin and you should see the table. Manipulating SQL tables is nothing b2evo specific and should be quite easy with phpMyAdmin. Select the table. Go to "Insert". Add the name/value pairs.

Ok, found my way into phpMyAdmin and added the two name/value pairs you suggested but it's still turning up errors when I try to upload a file.

I was unsure if I needed to select a Function from the dropdown menu for each line. Also, do I need to "save" the changes somehow before they will take effect on the site?

Thanks for your continued help.

The settings you've manually added only apply for new directories/files. They are still wrong for the already existing ones.

Just read:

Those settings get used only for new created directories/files, so you have to change the chmod setting of the already existing ones (like the one above).