Mothur make.biom tool job submission failed


I am a beginner in analyzing metagenomic data by 16S amplicon sequencing. Currently, I am following the tutorial given by the GTN.

I have managed all the steps to the last step for visualization using Phinch.
When I tried to run the make.biom, I got this error message: The server could not complete this request. Please verify your parameter settings, retry submission and contact the Galaxy Team if this error persists. A transcript of the submitted data is shown below. in red box, followed by {} below that notification.

I’ve tried omitting the metadata file then re-run make.biom and removing extra white-spaces in the metadata file, but the problem persist.

I appreciate anyone who can help. Thank you!