Looks like you are on the right track. Both crashes are identical.
############################################################
### FATAL THREAD 28/60 [ n
HTTP:0a60:0bb0]
### FP=0b96bff8, PC=0053365f, SP=0b96beb8, stksize=320
Exception code: c0000005 (ACCESS_VIOLATION)
############################################################
@[ 1] 0x0053365f ninotes.Haiku::Ctx::InitCachePtrs+47 (53f3c5,da35f74,b96d250,b96f7b0)
@[ 2] 0x005335d5 ninotes.Haiku::Ctx::GetFormsCachePtr+5 (b96d08c,da3b0f4,6507d8,0)
@[ 3] 0x005059b3 ninotes.CustomResponse::AttemptToProcess+995 (b96d250,0,da260f4,20)
@[ 4] 0x00473bf6 ninotes.
HTTP::FormatErrorResponse+182 (da260f4,0,b96f7b0,20)
@[ 5] 0x00473d2d ninotes.
HTTP::ErrorResponse+157 (d7ea528,b96f7b0,b96f8f0,20)
@[ 6] 0x0047deb6 ninotes._InotesHTTPProcessRequest+2182 (d7ea528,d7ea518,d7ea468,0)
@[ 7] 0x0047d65f ninotes._InotesHTTPProcessRequest+47 (d7ea528,3,8,b96fd54)
[ 8] 0x100138f4 nhttpstack (d7ea468,d7ea304,0,b96fef0)
[ 9] 0x1000fa7f nhttpstack (3,d6b5084,16cdd84,0)
[10] 0x1001c7c1 nhttpstack (0,16acb78,16acdf2,b96ff20)
[11] 0x10020b06 nhttpstack (16acb84,16acb78,0,60090821)
[12] 0x10029c74 nhttpstack (3,16acb78,10026e00,10026e2a)
[13] 0x10029b1b nhttpstack (16acb78,0,0,0)
@[14] 0x6011d724 nnotes._ThreadWrapper@4+212 (0,0,0,0)
[15] 0x77e8b2d8 KERNEL32.lstrcmpiW+183