Format string error, alternative? XHTML

Hi all,  Format string is causing an error for me in Mendix 8  I use format string as I have an attribute which is an XHTML output that needs to be rendered  So I have two questions –  Does anyone know what this error and have any advice about it    For some reason, I remember having a conversation with someone who said format strings irrelevant now, because anything they can do can be done using text and formatting, does anyone know an alternative to the format string rendering XHTML? TIA
1 answers

I opened a pull request that fixes this issue months ago. I am really surprised it is not merged yet.

Feel free to download a version of format string with this fix from the pill request here: