PayPal said on Thursday that it was “experiencing a system issue” that appears to be interfering with merchants’ ability to process payments.The San Jose, Calif.-based tech giant issued an incident report on its web site on Thursday saying that the outage “may be affecting multiple products in our Production environment.”“Merchants may be encountering an elevated number of” error messages.PayPal said on Thursday that it was “experiencing a system issue” that appears to be interfering with merchants’ ability ...