Can you try to change `ne555d` to `555`, If you want to run a simulation, please make sure the components have the spice models. Not every components have models.

Please note that **all** components in the EasyEDA Libs palette have default spice models attached to them (except the single and dual row connectors which are schematic symbols only: they do not appear in the spice netlist). We are working hard to provide a spice model search tool to help find alternative models for our device symbols. Please bear with us a little longer. **In the meawhile, if there is a devce model that you especially want, please contact us.** :)

thank you dillon and andyfierman for detailed info.