My long time working script to limit an AP is no loner working since routeros 6.43.4
Can someone help me fix it?

:local traf
/queue simple
:set traf [get [find name="AP"] total-bytes]
:set traf ($traf / 1048576)
:if ($traf < 100) do={
set [find name="AP"] limit-at="256k/256k" max-limit="256k/256k" burst-limit="256k/256k" burst-threshold="128k/128k" burst-time="2s/2s" priority="4/4"
}
:if ($traf > 500) do={
set [find name="AP"] limit-at="128k/128k" max-limit="128k/128k" burst-limit="128k/128k" burst-threshold="64k/64k" burst-time="2s/2s" priority="4/4"
}
:if ($traf < 1000) do={
/ip firewall filter disable [find comment="AP"]
}
:if ($traf > 1000) do={
/ip firewall filter enable [find comment="AP"]
}