Error - Payment Gateway

[Hummie]

I upgraded to vB 5 last night.

Now I am getting this error in an email and I'm worried the subscription payments are not working right. Please help. What should I check.


Database error in vBulletin 5.1.1:

Invalid SQL:
INSERT INTO access (`userid`,`forumid`,`accessmask`) VALUES (5670,61,1)
/**access- payment_gateway**/;

MySQL Error : Duplicate entry '5670-61' for key 'PRIMARY'
Error Number : 1062
Request Date : Tuesday, July 1st 2014 @ 09:19:01 AM
Error Date : Tuesday, July 1st 2014 @ 09:19:01 AM
Script : http:///forum/payment_gateway.php?method=paypal
Referrer :
IP Address : (redacted for posting purposes)
Username : Guest
Classname : vB_Database_MySQL
MySQL Version :

[Wayne Luke]

Did you delete your vBulletin 4 files before uploading the vBulletin 5 ones?

To resolve the error, need to know which of the two numbers is "duplicate". You would need to find the max value in the database.

[Hummie]

Yes. I deleted all vB4 files before upgrading.

Finding a "max value" in the database is beyond my scope of ability.

[Hummie]

Can you tell me how to find the max value in the database? Is that just a database search?