Warning message being showing for the Statistical Inference exercise

[pakjiddat]

When completing the CommonDistros and Asymtotics exercises in the Statistical Inference course, the following warning message shows up:

warning messages from top-level task callback 'mini'
Warning messages:
1: Use of `dat$y` is discouraged. Use `y` instead. 
2: Use of `dat$y` is discouraged. Use `y` instead. 
3: Use of `dat$y` is discouraged. Use `y` instead.

The T-Confidence Interval exercise shows the following error:

warning messages from top-level task callback 'mini'
Warning message:
In pvp$name : reached elapsed time limit