Importing quizzes and entire modules problem

[JessicaOlmsted]

Hello! For the past two weeks, my colleague has sent me modules and quizzes (classic) for math, but when I upload them, they never show up.  It says "starting to upload file" but then never does. I've even tried to upload it again. I had her send me the quizzes since I thought it was a problem with importing entire Modules. That worked last week, but isn't working this week. I have been importing files from my entire team all year, but this has just become a problem this week. I am very confused why is it suddenly happening. I am importing them the same way I have imported them all year (and the past two years for that matter.) 

Any help would be great! 

Thanks! 

Jessi Olmsted