Bluetti AC180P randomly switch off the AC output. Need upgrade

Hallo to all.
I use the AC180P in UPS mode. Over the last couple of months disconnection of the AC output has become more frequent.
Could you provide me firmware update.

Thanks in advance.

SN: AC180P2428001360306
BMS: v1048.03
IoT: v9046.01
ARM: v2125.02
DSP: v2126.02