Still does not work for me 
I am trying on Workbench 3.1 (With BetterWB)
The ROM is 3.1
CPU is set to 68000 (Fastest Possible)
Chipset is Full ECS
RAM 2MB Chip and 8MB Z2 Fast
The WinUAE version I am using is 3.1.0
I get the same error as before. However if I use 68020 CPU it works.
I was going to post a long instruction guide for setting up AWeb on a fresh install of 3.1 with your WinUAE setting.
But, I then then installed BetterWB and got the AWeb crashes you got. Sometimes AWeb would run for ages, sometimes it would crash when I was changing website. The crash would usually turn the screen to garbage, and then it'd Guru with 80000003, 80000000, and even one 8000000F.
I don't know what the conflict is, but I hope someone can suggest a fix, because BetterWB looks interesting.
And give Aweb on a fresh, stock 3.1 install another chance.
P.S. Why on why do we have to get the Installer command from the root of the Install disk, rather than it being automatically copied into the C directory? Such a weird choice...