I just bought the PvZ GW2 and I too have the 'must be signed into PSN' problem. Clearly this is a problem for many. I didn't realize EA games have such problems. Unless there is a fix, i'll have to try to go for a refund as well as carefully consider if I buy EA games in the future. Please let me know if there is a fix.
Community Manager@jeffersonjchoi Have you checked that you are signed into the PSN? The accepted solution in this thread has worked for many: https://answers.ea.com/t5/PvZ-Garden-Warfare-1/You-must-be-signed-in-to-quot-psn-quot-to-continue/td-p/4713113
