It looks like the MSI installer has different wording, I am wondering if anything changed, since are getting installation error. IT no longer asking for SITE CODE but rather for SSRS toot folder
Yeah, it now uses the SSRS ConfigMgr report folder name. You can find out more about the install info in the install instructions. This was so it would work for an SSRS folder name when it's not using the default ConfigMgr_<SITECODE>. There haven't been any revisions recently to the RDL files so you don't need to re-install.