One of my iOS apps is unresponsive
I am using an iPhone 7, running iOS 11.2.1. It has capacity 128 GB, 69 GB free.
I had been using 1Password very happily on it. However, when I was still on iOS 10, I did an update, and it disappeared from my "desktop". Since then, both iOS and 1Password have been through several updates (current 1Password version: 7.0.3). I have always installed updates at once, hoping that 1Password would reappear. But until now it hasn't. I can find it in my App Store, but when I press the Open button, nothing happens.
When I was still in iOS 10, I did delete and reinstall 1Password once or twice. However, it would straightaway disappear from the desktop, and I would be back to status quo.
I have been very frustrated because it's so difficult in iOS 11 to delete apps. However, today, I finally learned from this site how to delete it, under Manage Storage in Settings. So, I deleted it (and I've also offloaded several other big apps I'm not using). Now I am trying to redownload it. I see the blue cloud & arrow, they are not faded out. But when I press on the blue cloud, nothing happens.
I hope you can help me to make 1Password functional again. It really is so useful!
iPhone 7, iOS 11.2.1, 128 GB