I recently used Expert Analytics 3.2 more specifically the R a-priori algorithm and experienced problems running the algorithm. This is due to some side-effects in R libraries update and we will resolve this in the next release of SAP Predictive Analytics.
In the meantime, I'll share a compiled version of the arules package that's resolving the problem. You need to copy the whole content of this shared folder to C:\Users\Public\R-3.3.0\library in order for a new "arules" folder to be created.
https://mdocs.sap.com/mcm/public/v1/open?shr=Cfn7kczCkw_K0kBm6MB04-weKo2tfXhmDlkODev27kc
Kind regards,
Antoine