Custom Sidebar causing issue across all posts

Hi! Your plugin has been a great addition to my site and has worked (mostly) smoothly for the past year. However, yesterday I ran into an issue. WordPress is giving me an error at the top of the Posts page as well as within the edit screen for each individual post. The error is preventing me from fully editing my posts. Note that this does not appear to have impacted the front-end of previous posts.

The error reads:

Warning: session_start(): open(/tmp/sess_d8f0fd1a28f2ca97d683f61ca6f595ff, O_RDWR) failed: Permission denied (13) in /home4/wahicm0aeqla/public_html/wp-content/plugins/custom-sidebars/inc/external/wpmu-lib/inc/class-thelib.php on line 145
Warning: session_start(): Failed to read session data: files (path: /tmp) in /home4/wahicm0aeqla/public_html/wp-content/plugins/custom-sidebars/inc/external/wpmu-lib/inc/class-thelib.php on line 145

As you can see, it’s finding an error with a file in the /custom-sidebars directory. I checked line 145 of the file /class-thelib.php, and it simply reads session_start();. The permissions for all files are 644, and 755 for folders.

Can you help me get to the bottom of this? Happy to provide more information if you can give me some guidance on what you need and where I can locate it.

• This topic was modified 6 years, 11 months ago by soccerandtacos.