Problematic message code

function runonce()
    entitybindkey(this, "sumbitsay", 13, 0, -1)
    entitybindkey(this, "deletechar", 8, 0, -1)
end

function initialized()
    saystr = ""
    cc = 0
    timer = 10
end

function main()
    textupdate()
    char()
    pos()
    drawsay()
    drawlog()
end

function always()

end

function submitsay()
    --if string.len(saystr) > 0 then
        gamedatasave(tostring(cc), "Me: " .. tostring(saystr))
        print(gamedataread(cc))
        saystr = ""
        print(saystr)
        cc = cc + 1
    --end
end

function char()
    if timer <= 0 then
        if getentitytilechar(this) == 0 then
            setentitytilechar(this, 219)
            timer = 10
        elseif getentitytilechar(this) == 219 then
            setentitytilechar(this, 0)
            timer = 10
        end
    else
        timer = timer - 1
    end
end

function deletechar()
    if string.len(saystr) > 0 then
        saystr = string.sub(saystr, 1, -2)
    else
        saystr = ""
    end
end

function pos()
    entityposition(this, 6 + string.len(saystr), 38)
end

function drawsay()
    if string.len(saystr) > 31 then
        saystr = string.sub(saystr, 1, -2)
    end

    drawset(0, 27, 48)
    drawtext(6, 38, tostring(saystr))
end

function drawlog()
    for i=1, 35, 1 do
        if gamedataexists(tostring(cc - i)) then
            drawtext(1, 36 - i, gamedataread(tostring(cc - i)))
        end
    end
end

function textupdate()
    for i=48, 57, 1 do
        if keyhit(i) then
            local char = getchar()
            saystr = tostring(saystr .. string.char(char))
            flushkeys()
        end
    end

    for i=65, 90, 1 do
        if keyhit(i) then
            local char = getchar()
            if keyhit(160) then
                saystr = tostring(saystr .. string.upper(string.char(char)))
                flushkeys()
            else
                saystr = tostring(saystr .. string.char(char))
                flushkeys()
            end
        end
    end
end