Sounds like you are using a desktop wallet? I recommend that you upgrade to the latest wallet (v12.1). This version is much better at keeping up with the block data than previous versions. Very important- be sure to backup your seed before upgrading. It is the key for wallet recovery in case of any problems or if you transfer from one wallet platform to another.
Note- RaiBlocks has been rebranded as Nano. Please use the Reddit or Discord channel for future support/questions. This site will be shutting down soon.