To enable scanning of a particular barcode, its symbology must be enabled. You can find detailed instructions on how to configure which barcodes are read in the documentation pages below:
Additionally, as symbologies can have different properties, you would need to make sure that the properties of the barcode you wish to scan are being set accordingly. The details regarding Symbology Properties can be found here.
In case you can't scan the code even after verifying the above, contact us through this contact form with details on the device you are using and a sharp image of the barcode.