Paypal is one of the most well known online payment systems that will run into problems in a variety of ways. This could be directly at store fronts, or when transferring money and in rare cases could be related to PayPal going down or running into other server connection issues.
The most common PayPal problems are related to the sign-in within apps and at the website, or when sending a payment along with depositing money via a credit card / checking account.
You will find support contact information on this very page, so those of you having problems with PayPal and sending money should reach out through these support channels. You can leave status updates about your problems below, and take a look at other users having issues right now.