I have been using Messages+ on the web in a work computer for months. Up until yesterday morning, the names of my contacts showed up in my texting history. Yesterday midmorning, they all changed to phone numbers only and I cannot search for my contacts on the web. The app on my phone is fine (although it did give me phone numbers only for a few minutes last night. I restarted my phone and all has been normal.) I backed up my contacts and messages this morning and opened a new web page for messages plus, but still no contact names.