B31J Warning Messages

Hello I have a simples piping system with 1 standard tee fitting, upon analysing I get the following warning messages.

* * * W A R N I N G - MODEL * * *
W2164-192:B31 App J: Collinearity detected on the following tee(s)
and will be analyzed as a non-B31J component:

A02

* * * W A R N I N G - MODEL * * *
W2164-194:B31 App J: The branch pipe axis is not within 5 degrees normal to the axis of the run pipe
for the following tees:

A02

Can someone please explain why these warnings come up and how to fix them?

Thank you