Access Denied.

A nonce failure occurs when the form doesn’t think the current user and the originator are the same. It’s not a normal occurrence, but without a lot more detail, I can’t tell you much more. Are you trying to do anything non-standard? Do you have any security software that might be preventing the payment.php file from loading?

–David

Nothing non-standard that I am aware of. I had Wordfence running but the access denied comes with it disabled also.

Here’e my list of plug ins (maybe you can see some problems here?)

AddToAny Share Buttons
Akismet
Artikel duplizieren
Contact Form 7
Cookie Law Info
Custom Facebook Feed
Easy Plugin for AdSense
Google Analytics Dashboard für WP
Jetpack von WordPress.com
List category posts
Page Builder by SiteOrigin
Per Page Sidebars
Polylang
Quick Page/Post Redirect Plugin
Rating-Widget: Star Review System
Seamless Donations
SiteOrigin Widgets Bundle
SpeakOut! Email Petitions
Ultimate Addons for SiteOrigin
Widget Wrangler
Wordfence Security
WP Simple Paypal Shopping cart

What can I tell you more? I really would like to use your plugin, the others are of no use for me.

Thanks a lot!
– Chris

I’ve spoken to the Wordfence guys and we don’t think there’s a conflict with their plugin, but just as a trial, turn off Wordfence and see if the donation goes through.

Either way, turn Wordfence right back on after. Let me know what happens.

–David

Hi

I tried that already. Turning of WF did not solve the problem.

– Chris

Ah, I think I may have a clue. That error is generated in legacy mode, which is pretty much no longer supported. Are you running either an old 3.x version, or not updated to 4.0 mode? You should be running 4.0.11 (or, at least 4.0.10).

–David

No, I’m using Version 4.0.11.

– Chris

Hmm.. that error is triggered in the 3.x code. Is the admin icon for Seamless Donations a gear or a palm tree?

Its a palm tree.

Okay, that’s interesting. Let’s try this. Clear your log, then try to do a transaction, and then copy and paste your log here (or email it to me if you don’t want it on the forum). Let’s see what it says.

Keep debug mode off (in the Settings tab).

what’s you email address for the log file?

https://zatzlabs.com/contact-us/

Thanks. I have send the log to this address.

– Chris

I looked at your log. Are you using this on only one browser or computer? Basically, your transaction is failing on the very first line of code, where it can’t verify that it’s being transferred from WordPress to the payment logging code. The nonce check is a very low-level fundamental Web code check, and there’s pretty much nothing that happens before it, so it’s a critical failure.

Typically, the only way you would get a nonce failure like this is if you were trying to run that URL directly, without being transferred over from the proper launching routine. The only other way I would think is possible (but have never seen) is if you are using a browser that is not properly sending URL parameters or is otherwise damaged. Beyond that, I have no idea. I guess you could try running it in English and see if it’s a language-related problem, but I doubt it. We have a lot of folks who have used Seamless Donations in German.

Let me know.

–David

Don′t know if I understood you correctly.

I have a page in WP with some text and short code at the bottom in it. After releasing the page I press the donate button, thats it.

Here’s the URL: https://der-verbotene-weg.de/spenden/ There you can see it.

Hi David!

Guess what. I tried the above with Google Chrome and it works! On Safari (Mac OS 10.11) not!

What next?

– Chris