[Koha] Bar code not reading by scanner

[Nalisha Tamang]

dear all,
please help me out. Barcode scanner is not reading the barcodes. We have
recently changed our systems and after that I tried generating barcodes and
the barcode numbers are strange, especially '0' comes with dots. I can't
figure out the problem. Please help me asap. I have attached the barcode
sheet as well.
thank you
with regards,
 Nalisha Tamang Rai