it's just a simple try except code, something like this:
results = {}
were_errors = False
for script_name in ['script1', 'script2', 'script3']:
try:
retValue = dbutils.notebook.run(script_name)
results[script_name] = retValue
except Exception as e:
results[script_name] = "Error: {e}"
were_errors = True
if were_errors:
log failure # you can use data from results variable
else:
log success