[HELP] SteelDiverSW Custom CRC32 calculation

EC 30 F7 30 1B 00 00 00 CA 01 00 00 0B 00 00 00 |A4 90 C9 B8 1B 00 00 00 C5 01 00 00 0B 00 00 00
73 61 76 65 2E 73 75 62 2E 74 79 70 65 38 2E 63 |73 61 76 65 2E 73 75 62 2E 74 79 70 65 38 2E 63
72 65 77 32 00 FF FF FF FF 73 61 76 65 2E 73 75 |72 65 77 32 00 FF FF FF FF 73 61 76 65...