Be aware that the error number you get is important in it’s whole length. If you have different code, your issue is different from this one and might be mod related.
List with other codes can be found here: https://sims4.crinrict.com/eng/sims-error/error-codes/
More information about loading errors can be found here: Loading a family just reloads the map
This error can be caused by outdated mods and custom content. I don’t know which ones in detail.