0 DB_ERROR_NOT_CONNECTED
What do I do with this message?
Troubleshooting
Dealing with problems as they come up
Admin menu item is missing
I can’t find an item in my Admin menu
Admin Password - Resetting or Changing
Reset your admin password using these steps
Admin password expired
Why do I have to change it?
Blank Page troubleshooting
How do I fix a blank page or partial blank page?
Blocking Attacks
How do I keep these bots away from my site?
Can't login or stay logged in or add-to-cart
PHP Session Handling in Zen Cart
Communication Issues with UPS, PayPal, etc.
Using the utilities in the extras folder to diagnose communication issues
Constant already defined debug logs
How to suppress logs saying a constant is already defined
Debug Logs
How do I interpret a debug log?
Diagnosing Obscure Issues
Strategy for digging into root causes of problems
Email Troubleshooting
What do to when email is not being sent and/or received
ERROR 0071 - There appears to be a problem with the database
What do to when it says “Maintenance is required.”
Error 2006 MySQL server has gone away or 2013 Lost connection to MySQL server during query
What do I do with this message?
Errorlog access
Where do I find my server’s errorlog to review server-side problems?
Fatal error from an undefined constant
How do I fix an undefined constant debug log?
HTTP response codes
What do 500, 404, 200 mean?
I can't login to the Admin after installing Zen Cart
Post installation login issues
I've got TEXT_MAIN being displayed on my page
Unexpected uppercase words showing in page content or error logs
max_user_connections exceeded
Seeing max_user_connections errors in logs
Missing Log Files
What if Zen Cart does not write to the /logs folder?
My Site Seems To Be Down
Checking Site Status
No data in my store after moving hosts
Where is my data?
Parse error: unexpected T_STRING (or similar)
How do I resolve this PHP message?
PayPal Debug Logging
Getting more information by enabling PayPal logs
Products and Categories at the Same Level
Restrictions on category contents
Secure and nonsecure items
Error messages “Unauthenticated content” or “connection partially encrypted”
Shipping Problems
Problems with calculating a shipping rate
Sorry, the page you were attempting to access cannot be found
Why won’t my EZ-Page show?
There seems to be a problem connecting to our database
What do I do when this message is shown?
There was a security error when trying to login
Sorting out expired or invalid form submissions
Understanding problems that occur after upgrading PHP versions
Updating PHP causes new Debug Logs
Warning: An Error occurred, please refresh the page and try again.
What do I do when this message is shown?
Warning: Headers already sent...
Fixing this PHP warning message
Warning: I am able to write to the configuration file
How do I make configuration files read-only?
Warning: Your Admin login is not secure
I get a “login not secure” message in my admin - how to fix?
What is STRICT mode for my database?
MySQL STRICT mode and its impact
What is STRICT_ERROR_REPORTING
How do I use this setting?
Why am I getting 500 INTERNAL SERVER ERROR messages?
How do I resolve an HTTP 500 error?
Why am I getting 500 or 406 or 404 or 403 errors during product updates?
Product Update returns HTTP status 500, 406, 404 or 403
Why are my images distorted?
Fuzzy, squished or distorted images
Why do my product names show up twice?
No, you don’t have double vision
Why does my define page not show up in Define Pages Editor?
I can’t see my custom define page in admin
Do you have a suggestion for a FAQ? Please post it to General Questions on the support forum.
Last modified August 24, 2020 by Scott C Wilson (8884c3ec).