What do you think what is execution error?
Our electronic definitions web site has answer for that as well:
is an error detected during program execution (e.g. overflow division by zero).
Also called runtime error.
is a mistake in the design of a program (e.g. a brarich to the wrong statement).
results from an incorrect use of the rules governing the structure of the language
(e.g. in BASIC LEP A=2 or LET (X)=Y).