Error with cutadapt plugin - exit code 28

I suppose it is possible it relates to this post regarding space in the /tmp directory. Plugin error from cutadapt: [Errno 28] No space left on device ?

However, I am told by our server admin that it is hard to allocate more space to the tmp directory at this time. Is there a way to have qiime2 write to a different /tmp directory within my account that has more space (rather than the communal server one).

I am still baffled why this is happening now after several years of running this exact code on MiSeq runs of the same size...

Thanks again for any help and guidance you can provide!
Colleen