You were about to make a phone call, but right before you hit the dial button, your door bell rang, which caused you not to start the phonecall, instead to check your door. In most cases, if you try to run the same feature/interaction again, you will not receive any LEs, and things will run as expected.
They don't occur because the code itself is broken rather, something interrupted the code while running this one time. As mentioned, they often occur due to simple reasons, and these errors are 100% harmless and not consistent. It's a built-in feature to let you know that a code didn't finish its execution completely. LEs can result from various in-game scenarios. They do not indicate a flaw in the code itself but rather a one-time disruption preventing proper execution.
LEs could also indicate a broken mod/mod feature, though usually, those errors are often circumstantial and harmless. They could happen due to simple harmless reasons caused by unpersistent/unconsistent circumstances, which is most likely the case. Last Exceptions in The Sims 4 are error reports that occur when a code encounters unexpected interruptions during gameplay. Here are some helpful tips for understanding and handling last exception reports. Sul sul simmers! I hope you're doing great. × Understanding Last Exception Error Reports in Sims 4 Mods
