PayPal Express Checkout transactions declined

I did try deactivating and reactivating several times, but it didn’t make a difference. I also couldn’t get through to PayPal support by phone and the online chat support had no solutions. I don’t think my sales have suffered at all from not having PayPal as an option (domestic customers can send email transfers if they prefer not to use credit card), plus I didn’t find the PayPal customer support very helpful, so it makes me hesitant to deal with PayPal at all.