Hi lamsung,
Welcome to EasyEDA.
This is not a bug.
You are seeing this error because you are using a schematic symbol which does not have a simulation model associated with it.
Please follow the guidance in this post:
https://easyeda.com/forum/topic/How_to_find_simulatable_parts_and_run_a_simulation_in_EasyEDA-1YgasK2kC
You will find a simulatable, parameterized crystal symbol in the spice system symbols section.
:)
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