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  • Makked
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  • Join Date: 30-Jan 19
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Posted 02 February 2019 - 10:52 AM #1

Can anyone help with this? I cannot get my store to link and proccess sales with PayPal anymore. This message comes up everytime and i canot find a solution anywhere in the user files.

 

Error 10002Security error: Security header is not valid



 
  • The Tool
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Posted 02 February 2019 - 03:08 PM #2

Check your SSL.  Has it expired?



 
  • Cart-Power
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Posted 04 February 2019 - 06:19 AM #3

Hello! 

 

Can anyone help with this? I cannot get my store to link and proccess sales with PayPal anymore. This message comes up everytime and i canot find a solution anywhere in the user files.

 

Error 10002Security error: Security header is not valid

 

Have you checked the access credentials as mentioned in your previous topic? https://forum.cs-cart.com/topic/54233-error-message


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  • tbirnseth
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Posted 04 February 2019 - 07:01 PM #4

What version of cs-cart are you running? If pre 4.9.2, you may need to install the http2 fix.
You can get a free addon here that will apply the patch for you.


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  • ngafin
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Posted 05 February 2019 - 04:51 AM #5

Can anyone help with this? I cannot get my store to link and proccess sales with PayPal anymore. This message comes up everytime and i canot find a solution anywhere in the user files.

 

Error 10002Security error: Security header is not valid

 

Make sure that Certificate or Signature in your PayPal payment method settings are correct. This is what usually causes this error message.