When I was trying to EFILE, I received this message, what does it mean? "Unable to get response from the Government Agency. Please try again later Cra T1 EFILE service failed at returnCode=500"

Any update on this?  I'm getting this error too!

I am also getting same error

This never happened last year, so, what is going on this year?  I am having a lot of issues with ProFile, a lot of time the software screen would close by itself while I'm still working on it.  And plus, I don't know if it's just me or it's happening with others as well, CRA's taking forever to assess even some of the simple t4 returns. Everything is so messed up this year. Is TaxPrep any better than ProFile? 

Tried again this AM.  Same message.  However, I did solved my issue with this message.  Could have been 1 of 2 things or both.  My clients turned 65 in 2023 and did not apply for CPP.  Was trying to not to have CPP premiums calculated on their business income. Removed that.  Secondly when their rental properties carried forward, the one that was sold left the first address blank, had to move the remaining one up into that space.  Hoping this makes sense! Then it filed.