Download from stooq is working but with some error messages

I get this error message in file import.log (in Amibroker folder):

Logging started for 'C:\Program Files (x86)\Amibroker\AmiQuote\Download^AOR.aqs' file, using format definition file 'Formats\aqs.format'
Error in line Data,Otwarcie,Najwyzszy,Najnizszy,Zamkniecie,Wolumen
Invalid (close) price. Prices must be positive. If you want to import no quotation data please specify $NOQUOTES 1 ('no quotation data' box in Wizard)
Invalid date format/value

I download all world indicies from stooq, it works fine but for some of them I get this error message. I can ignore it but as I'm an engineer it is hard to do ;0)

Here is my aqs.format file:

AmiQuote Stooq.pl quotes download format (.AQS extension)

$FORMAT Date_YMD,Open,High,Low,Close,Volume
$SKIPLINES 1
$BREAKONERR 0
$SEPARATOR ,
$DEBUG 1
$AUTOADD 1
$CONT 1
$GROUP 254

Do some of the symbol datafiles have an extra line in the beginning?

Anyone else here seen this?