Antivirus Crashing MacBook Air Running Big Sur 11.2.3

Every week or two my mac book crashes like this:

Process: com.avast.Antivirus.SystemExtension [381]
Path: /Library/SystemExtensions/*/com.avast.Antivirus.SystemExtension
Identifier: com.avast.Antivirus.SystemExtension
Version: 1.2.75 (1.2.75)
Code Type: X86-64 (Native)
Parent Process: launchd [1]
Responsible: com.avast.Antivirus.SystemExtension [381]
User ID: 0

Date/Time: 2021-03-18 14:52:44.953 -0400
OS Version: macOS 11.2.3 (20D91)
Report Version: 12
Anonymous UUID: 2E3D47F1-7F2D-46FC-15EF-01FBEF8A9846

Sleep/Wake UUID: 726494C2-E87B-4061-A004-8B86E1E3FC74

Time Awake Since Boot: 110000 seconds
Time Since Wake: 20000 seconds

System Integrity Protection: enabled

Crashed Thread: 3 Dispatch queue: com.apple.main-thread

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Application Specific Information:
abort() called
com.avast.Antivirus.SystemExtension(381,0x70000bbf7000) malloc: *** error for object 0x7fe875f8c000: pointer being freed was not allocated

Has anyone experience resolving this???

Best,

John

Hello,
this should be fixed in the next version, 14.9
Kind regards,
Ondrej Kolacek