Converting Production from V24 to V25 Fails everything

For context: I have a team of 9 people that are all working off of a shared server space, where the Production is stored. We are creating a doccumentary and are 2/3 of the way done editing, the whole production file is around 180GB. For other reasons we needed to update to Premeire Pro 25 on all our devices. 

Here is the issue below:

Each time I click the: open production button --> choose Production and then I click on the produciton file  and it prompts the entire production file to be updated, normal so far. I click convert and it brings up a window with a progress bar, here it just freezes and crashes after about 5 mins. We have attempeted to convert it on serveral different devices of different specs and none of them work and It crashes each time. 

If anyone has any idea how to fix this that would be amazing since we can't work on the doccumentary until it converts!