INFO: [8ba8f823: suntech < 200.68.159.80] HEX: 414c543b303532303030363434343b3346464646463b35323b312e302e31383b303b32303231303331303b30363a31313a32303b30323444394630333b3333343b32303b303032333b33303b2b31392e3432303036313b2d39392e3731353832353b302e30303b302e30303b31393b313b30303030303030313b30303030303030303b33333b3b0d
2021-03-10 11:20:15 WARN: [8ba8f823] error - Index 22 out of bounds for length 22 - ArrayIndexOutOfBoundsException (SuntechProtocolDecoder:540 < *:724 < ExtendedObjectDecoder:52 < ... < WrapperContext:102 < ...)
No, it's an error from decoder.