The Pc which is on one vlan is able to ping ZS, so I’d assume that the routing, at least between the L3 switch and ZS, is properly functioning, but the PC isn’t able to ping the router beyond Zs … And, would also be interesting to know the result of the ‘IP check’ , if the ping from Zs to that pc was succesful or not (apart the ARP ‘error’, which is normal over L3)
Regards