So I have been following along as I am also new and trying to get my PiGate up on e tower. After making the changes as shown below, I get a different error.

Error:

2021/02/25 15:31:49 Connecting to W8LRK-10 (ax25)...
2021/02/25 15:31:51 Connected to W8LRK-10 (AX.25)
*** W8DSB Connected to CMS
No CMS connection available - using local BPQMail
LARK:W8LRK} Connected to BBS
[BPQChatServer-6.0.21.1]
2021/02/25 15:31:57 Exchange failed: Remote does not support B2 Forwarding Protocol

Below is my config:

; ? ? ? Basic RMS configuration

SIMPLE

LOCATOR=EN82BO
NODECALL=W8LRK
NODEALIAS=LARK
IDMSG: ? ? ? ? ; UI broadcast text from NODECALL to fixed dest ID
W8LRK - LIVINGSTON AMATEUR RADIO KLUB & BPQ Packet Node in Howell, MI
*** ? ? ? ? ? ?; Denotes end of IDMSG text
BTEXT: ? ? ? ? ; UI broadcast text from BCALL to destination UNPROTO=
W8LRK - LIVINGSTON AMATEUR RADIO KLUB & BPQ Packet Node in Howell, MI
*** ? ? ? ? ? ?; Denotes end of BTEXT text
INFOMSG:
Welcome to the W8LRK'S LIVINGSTON AMATEUR RADIO KLUB & BPQ Packet Node in Howell, MI

Thanks for visiting.
*** ? ? ? ? ? ?; Denotes end of INFOMSG text
CTEXT: ? ? ? ? ; The CTEXT text follows:
W8LRK - LIVINGSTON AMATEUR RADIO KLUB & BPQ Packet Node in Howell, MI
*** ? ? ? ? ? ?; Denotes end of CTEXT text
;----------------------------------------------- ?NETWORK SYSTEM PARAMETERS ----------------------------------------
NODESINTERVAL=25 ?; Nodes broadcast interval in minutes
IDINTERVAL=10 ? ? ; 'IDMSG' UI broadcast interval in minutes, 0=OFF
BTINTERVAL=60 ? ? ; The BTEXT broadcast interval in minutes, 0=OFF
MAXLINKS=63 ? ? ? ; Max level 2 links
MAXNODES=200 ? ? ?; Max nodes in nodes table
MAXROUTES=64 ? ? ?; Max adjacent nodes
MAXCIRCUITS=128 ? ; Max L4 circuits
MINQUAL=85 ? ? ? ?; Minimum quality to add to nodes table
;-------------------------------------------------- ?BPQ TELNET SERVER PORT --------------------------------------------
PORT
?PORTNUM=1
?ID=Telnet
?DRIVER=TELNET
?QUALITY=0
CONFIG
?LOGGING=1
?CMS=1
?CMSCALL=W8LRK
?CMSPASS=xxxxxxxxx
?HTTPPORT=8080
?TCPPORT=8010
?FBBPORT=8011
?MAXSESSIONS=10
?FALLBACKTORELAY=1
?RELAYHOST=127.0.0.1
?RELAYAPPL=BBS
?CloseOnDisconnect=1
?LOGINPROMPT=user:
?PASSWORDPROMPT=password:
?CTEXT=Welcome to W8LRK's Telnet Server\nEnter ? for list of commands\n\n
?USER=W8LRK,LARK,W8LRK,"",SYSOP
?USER=W8DSB,LARK,W8DSB
?USER=ANON.pass
ENDPORT
;--------------------------------------------------------------- ?VHF PACKET PORT -----------------------------------------------------
PORT
?PORTNUM=2
?ID=VHF PACKET
?TYPE=ASYNC
?PROTOCOL=KISS
?FRACK=5000
?RESPTIME=3000
?RETRIES=5
?MAXFRAME=6
?PACLEN=236
?TXDELAY=600
?TXTAIL=23
?SLOTTIME=90
?PERSIST=160
?COMPORT=/dev/kisstnc
?IPADDR=127.0.0.1
?TCPPORT=8001
?CHANNEL=A
?NOKEEPALIVES=0
?QUALITY=203
?MINQUAL=201
?UNPROTO=NOCALL
?USERS=10
WL2KREPORT PUBLIC, , 8778, W8LRK-10, EN82BO, 00-23, 145050000, PKT1200, 10, 20, 5, 0
ENDPORT

APPLICATION 1,RMS,C 1 CMS,W8LRK-10,LRKRMS,255
APPLICATION 2,BBS,,W8LRK-3,LRKBBS,255
APPLICATION 3,CHAT,,W8LRK-2,LRKCHAT,255

;------------------------------------------------------------ Load Appications -----------------------------------------------------------------
LINMAIL
LINCHAT