for some reason the sound effects aren't working.

I had one sound effect that was supposed to play when you fired your gun in my game and it worked fine. Then I added another effect for your knife (it was above it in the code, if that's important) and it worked, but the gun sound now won't play. So then I add a door closing sound effect, and they all stop working. I don't know if it is a bug in Tic80 or if its my fault but I'd like to know.

I am on Android and coding in lua if that's important.

My code

start=2
t=0
x=0
y=-120
anim=257
ammo=50
bulletx=100
bullety=64
bulletexist1=0
weapon=276
knswing=0
ctxt=""

local tiles={}
function TIC()
 
cls(12)
map(x,y)
if start==2 then --Keep at top. to run after start
bulletx=bulletx+1

if btn(0) then y=y-0.2 end
if btn(1) then y=y+0.2 end
if btn(2) then x=x-0.2 end
if btn(3) then x=x+0.2 end
if btn(1) then anim=anim+1 end
if anim==260 then anim=257 end
if btn(7) then weapon=277 end

--Shooting/Attacking
if weapon==276 then
if btnp(6) then
spr(296,107,64,0,1)
sfx(02,12,20)
knswing=2
else knswing=0
end
end

if not weapon==276 then
if ammo>0 then
if btn(6) then 
bulletx=100
sfx(4,18,20) 
end
if btnp(6) then bulletexists1=1 end
if bulletexists==1 then
local bx=100
local by=64
bx=bx+1
spr(290,bx,by,0)
ammo=ammo-1
end
end
end


if btn(5) then mset(x,y,050) end
print(ammo,10,10)
spr(anim,104,64,0,1)
spr(weapon,107,64,0,1,knswing)
if t<150 then 
print("Objective: Find a cure",80,20)
else
sfx(06,54,20)
mset(15,21,039)
mset(15,20,040)
end