Issues Modifying Existing Workflow from SE to PE

Hi,

I’d like to modify my workflow from single-end to paired-end, however when I switch the tools to PE compatibility everything breaks. What am I doing wrong?

Workflow: https://usegalaxy.eu/u/shelbyseq/w/copy-of-pd-microbiome-taxonomic-analysis-1
Platform: DNBSEQ-G400RS
Read Layout/Length: PE150, Standard MPS, Whole Genome

Any advice would be greatly appreciated.

Thanks!