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Have you specified memory_target and memory_max_target (or sga_max_size and sga_target) for your ASM instances, or left them on default? By default thry are often too low, and always the same. The memory_max_target is static, so you will have to change these parameters wirh scope=spfile andthen restart the clusterware. The other critical and static parameter is processes, better change that at the same time.
When you try to access ASM with non-oracle user you will get this error.
Check this MOS doc WARNING: ASM Communication Error: Op 0 State 0x0 (15055) [ID 1469167.1]
Work arounds to solve the issue is given in the doc.