Plastic Cowling tip break in Rubber Hose

[MBC1966]

Hi,
I was changing my break in oil on my Titan HD 1500 (9 hours). As I removed the rubber hose from the cowling, the tip broke off in the rubber hose. Does this mean I shouldn't use the mower until it is fixed? I was following manufacturer instructions...not sure why it broke. Any insights?

 

[Rivets]

Could you post a picture of the broken part, I’m confused by what broke.

 

[Scrubcadet10]

https://www.youtube.com/watch?v=Q91SMRKo8P8
this might give a little insight. looks like it has one of those Easy drain "thing a ma jiggers". I believe that model is also a Made In China engine, per several things i read and videos i watched.