Have reviewed your install. Your entire installation is massively out of date. CBSubs itself is 8 months out of date. At the very least please update CB, CBSubs, and any CB plugins.
Regarding your PayPal gateway settings I recommend adjusting the following as well.
PayPal Business (email or secure merchant ID): This should be set to merchant id
PayPal Main receiver account (email) (if Business is different from your main account): This should be set to whatever email address is marked as primary within your PayPal account
Your PayPal Identity Token: Please be sure this is absolutely correct as it seams far too short to be a PayPal token
See the below URLs where you can find the above information. It seams like your gateway isn't configured properly.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
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