Beginners usually oversee potential risks focusing their attention to necessary activities, milestones, team management etc. This is because they assume "ideal" conditions. they imagined while preparing project.
But, don't worry, even the most prominent experts have not included risk of pandemic situation in Calls for proposal resulting in project currently running and affected by covid19.
In most situations you have to take in account risks of: poor project management, financial problems of project partners, delay in activity implementation, contractor's problems etc.
To deal with such situations you have to "attack" project with different scenarios and then try to figure out how to deal with such situation. For instance, unexpected failure of project manager or a number of project team members to fulfill their duties. The main responsibility in this situation is on the Lead partner, acting as contracting authority of the project team.