page keeps crashing & data in incorrect fields

I have created documents before with Adobe and had no problem until now. I use Adobe to create forms for new hires to complete electronically (employee data record forms, W-4, sign employee policy manual, etc.) Recently, every time I try to create a document with numerous pages/several documents as one Adobe document, the page will crash and none of the data boxes/info fields I placed save. I thought it was my computer but I've tried other computers and get the same problem. I finally was able to create this document (only by creating several documents individually and saving each to Adobe individually, then selecting each from the Adobe library to create one document). However, when I created the document and sent it to several new employees to complete, their data ended up in the wrong fields. For instance, their social security number ended up where their name should be and so on. 

If anyone can tell me what the issue is and how to solve it, I'd greatly appreciate it. Thanks!