1- Connect your iPhone to iTunes (if you chose auto sync switch to manual)
2- Uncheck the affected apps and then sync (This will uninstall those apps from your iPhone)
3- Restart your iPhone
4- Connect your iPhone to iTunes
5- Recheck those apps and then sync again (This will Install the apps back on your iPhone)
Note: deleting the apps directly from your iPhone won’t solve the problem.
Stick the abovementioned steps.