81002 Unspecified Method from Debug with PayPal Express Checkout

I have setup PayPal Express and it appears to be done correctly when viewed in the Admin panel. In the shopping cart, when I click the "checkout with PayPal" button, I am taken to PayPal where the order total shows and I am asked to login or fill-in credit card information. So, everything looks fine.

However, I have the debug turned on in the PayPal Express Module in Zen Cart Admin and I am getting 9 error emails for each time I have clicked the paypal button in the shopping cart. I have pasted the one with subject line "PayPal Debug log - SetExpressCheckout" below. I do not know how to interpret what it's trying to tell me, so I don't know what or how to fix it.

What do I need to do to correct this problem?

Thanks for anything you can share.

Error Message Below

Note: As you will see, there was a live link in the error message below. On that page was the following:

ACK=Failure&L_ERRORCODE0=81002&L_SHORTMESSAGE0=Unspecified%20Method&L_LONGMESSAG E0=Method%20Specified%20is%20not%20Supported&L_SEVERITYCODE0=Error


> > > Email Message Starts Here < < <

2017-08-23 03:33:08
-------------------
(live transaction) --> https://api-3t.paypal.com/nvp
Request Headers:
Array
(
[0] => Content-Type: text/namevalue
[1] => X-VPS-Timeout: 90
[2] => X-VPS-VIT-Client-Type: PHP/cURL
[3] => X-VPS-VIT-Integration-Product: PHP::Zen Cart(R) - PayPal/NVP
[4] => X-VPS-VIT-Integration-Version: 1.5.5
)


Request Parameters: {SetExpressCheckout}
Array
(
[PAYMENTREQUEST_0_AMT] => 394.00
[PAYMENTREQUEST_0_ITEMAMT] => 394.00
[L_PAYMENTREQUEST_0_NAME0] => The Nuts and Bolts Boot Camp™ on Revenue and Profit [2]
[L_PAYMENTREQUEST_0_QTY0] => 2
[L_PAYMENTREQUEST_0_AMT0] => 197.00
[PAYMENTREQUEST_0_CURRENCYCODE] => USD
[LOCALECODE] => US
[GIFTMESSAGEENABLE] => 0
[GIFTRECEIPTEENABLE] => 0
[GIFTWRAPENABLE] => 0
[GIFTWRAPNAME] =>
[GIFTWRAPAMOUNT] => 0
[BUYEREMAILOPTINENABLE] => 0
[CUSTOMERSERVICENUMBER] =>
[BRANDNAME] => The Nuts and Bolts Boot Camp™ on Revenue and Profit
[PAYMENTREQUEST_0_PAYMENTACTION] => Sale
[ALLOWNOTE] => 1
[LANDINGPAGE] => Billing
[NOSHIPPING] => 0
[RETURNURL] => https://www.revenueandprofit.com/sto...3f0bb75eceb43a
[CANCELURL] => https://www.revenueandprofit.com/sto...3f0bb75eceb43a
[PAGESTYLE] => Primary
[METHOD] => SetExpressCheckout
[USER] => dianne_api1.dawsonresources.com
[PWD] => ****************
[VERSION] => 124.0
[SIGNATURE] => ****************************************************05FS
)


Response:
Array
(
[TOKEN] => EC-77R5908637417015F
[TIMESTAMP] => 2017-08-23T19:33:07Z
[CORRELATIONID] => 6e6bae498ff75https://ssl.gstatic.com/ui/v1/icons/...s/cleardot.gif



[ACK] => Success
[VERSION] => 124.0
[BUILD] => 38132639
[CURL_ERRORS] =>

I should have also said that I see that someone else asked a question about debug, but it was five years ago and so much has changed in that time that I thought it best to ask again.

If the error/issue is different than that other post, then definitely good to start a new post.

That said the particular log file does not appear to report any issues and in fact identifies a success at the end. As to the error message in red, would seem that there would likely be something more in one of the other emails or in the debug log (if enabled) that would be generated as part of trouble shooting.

As part of describing the issue, there isn't anything about other pertinent details such as are you using the same PayPal credentials as associated with the store? What payment options (ie. Credit cards) are enabled in the configuration section, was this site an upgraded site, if so how was the upgrade performed? Was the paypal payment method removed and reinstalled in the process?

The next question though is, what is it that is trying to be fixed? It is not clear that there is an issue to resolve. If it is that you're receiving emails, then turn off the email portion of the debug. If it's the red text information, then that wasn't too clear and it would help to identify more about where that message is generated to be seen/found.

Thanks, mc12345678. I had turned on the debug as a precaution during store set-up, so that if there was a problem with PayPal, I would have the logs as a resource. When those first emails came, it was disconcerting, even though the sale had gone through just fine. I thought there was a hidden problem somewhere, so I posted it here for help.

However, with sales going through on multiple tests, and no problems that I can see in zen cart or in my PayPal account, I have now turned off debug (based on the conversation in the older thread) and from everything I can see, it's all working just fine.

Thank you again for your reply to my question.