If you have set up a barcode to print out via receipt designer and the barcode is coming out as text! It generally means the PC / till you are trying to print from doesn't have the required barcodes installed.
The most common barcode fonts are 3of9 and code128
Please install the attached barcodes and try again.
(Extract the zip file and just run each file one by one which will install them)
Any problems please contact the support team.