I’ve seen this problem before. Your funds are safe, just delayed. Please answer the following questions and I’ll help you to get through it.
1- I see you are running Windows, that version? And do you know if it is 32-bit or 64-bit? You can check 32/64-bit here.
2- What does the status line in your wallet say?
3- Do you keep your wallet running and connected to the internet or do you shut down your wallet when you are not actively using it?
Note- RaiBlocks has been rebranded as Nano. Please use the Reddit or Discord channel for future support/questions. This site will be shutting down at some point in the future.