This is an issue that will require you to reach out to eBay regarding your account, and your charity suspension.

Here is an article about the charity program terms and conditions.

Additionally, we recommend looking at your donation account dashboard on eBay, as well as your eBay inbox, for any more information from eBay about your suspension. Once the suspension is lifted by eBay, you will be able to list items as usual.

This error comes straight from ebay, and is caused by a violation of their charity seller program. Failure to pay an overdue donation is often cited as a reason for suspension.