Landlord said we can’t flush toilet paper is this allowed?

So today my partner got a message from our landlord that said “Hi, I hope you’re doing well. I forgot to advise all of you that it is not allowed to dispose the bathroom tissue or ladies stuff directly in the toilet. Please collect them in containers around the toilet.The sewer systems got a problem.Danger of clogged toilets and pipes.If it will happen you guys will pay for the repair and damages.Please talk with all of your people upstairs and start to follow the instructions . Thanks ___ “

My partner messaged back to confirm that he was talking about toilet paper. He messaged back saying that this is his golden rule for all of his houses in Canada and back home and he does the same thing no headache.

We asked him when he will have the sewer system fixed but he replied saying “I think you got the information wrong. It’s not the problem with the house sewer system.Its a problem how you are disposing the toilet paper. I got before you 2 different tenants for more then 3 years and no problem at all.”

We don’t use a crazy amount of toilet paper we actually have a hand held bidet that you can fill and take around with you so we cut down the amount of toilet paper we buy/use. And our roommates are the same as us.

Edit: He’s not Indian for everyone who’s making nasty comments about Indians. Thank you for all the helpful replies I really appreciate the help!