i got this error in laravel BaconQrCodeExceptionWriterException Could not encode content to ISO-8859-1 [closed]

i got BaconQrCodeExceptionWriterException Could not encode content to ISO-8859-1 this error while i am trying to convert data into pdf file. i got this error in some cases only.

BaconQrCodeExceptionWriterException Could not encode content to ISO-8859-1