Cart suddenly stopped appearing

No sorry, I meant “Pay Pal Here” the mobile payment system with the card reader.

I never heard of that, what is it?

If you delete (empty) the cache from the super cache plugin then deactivate plugin (just temporarily), does the cart show after that?

Just to clarify something so you know where to really look.

There can be ONLY TWO things that can cause this:

1) You have a caching issue
2) You have a PHP session issue.

The following post is helpful to determine if the PHP session on your site is working correctly:
https://www.tipsandtricks-hq.com/forum/topic/php-session-not-working-correctly

You should create a test page then add the following two shortcodes in that page then test it:

[wp_cart_button name=”Test Product” price=”19.95″]

[show_wp_shopping_cart]

I did clear the cache and deactivated the caching plugin. No change.
I’ll check out the PHP session issue, however I never get a product in the cart because the cart never appears, so I can’t check to see if the product remains in the cart on different pages..

I suppose it’s about time for some crazy wp voodoo to strike
me, it’s been a few years since I’ve had a problem I couldn’t quickly solve.

It works on other sites I have on the same hosting account. Could it still be a sessions issue?

In the folder for the plugin, both the debug and index.html files are blank.

this is the last entry in the site error log. It’s the day that I messed up and assigned another site as primary, then tried to get the original primary domain back, which I did.

[29-Feb-2016 09:18:30] PHP Fatal error: require() [function.require]: Failed opening required ‘/home2/fourstic/public_html/fourstickswp-blog-header.php’ (include_path=’.:/usr/lib64/php:/usr/share/pear’) in /home2/fourstic/public_html/foursticks/index.php on line 17

It appears to just be saying that it can’t find blog-header, it was a syntax error that I eventually resolved.

So, where are you now with your issue? Is the above syntax error resolved?

yes as I said I eventually resolved that error (I forgot a forward-slash..) and got the site back, that was 5 days ago. Since then no problems except with the cart.

The exact nature of the error was this,
I have my site in a subdirectory so I have to define it in index.php

/** Loads the WordPress Environment and Template */
require( dirname( __FILE__ ) . ‘/foursticks/wp-blog-header.php’ );

which I did, but I left out the “/” in front of foursticks and lost the site for a while, until I discovered the syntax error.

In my troubleshooting of that issue, in admin/settings/general I changed the url for the wp install to the domain url. That caused yet another issue, but I changed it back and resolved it.

I’d like to try to reproduce it, but I’d have to assign another site as primary for my domain, set up WPSPPSC and then leave out that backslash again, fix it, then check to see if the cart is still appearing. Yikes..

All the above could easily cause a plugin to malfunction especially WSPSC plugin.

I’m going to try uninstalling and reinstalling simple PayPal shopping cart after my Caching plugin is cleared, turned off, then disabled.