Unlike some simulation tools, a schematic in EasyEDA **must** have an explicit power supply source.
Sorry but simply labelling a net +9V will not work.
This example shows some different ways of supplying power to a simulation schematic:
<https://easyeda.com/file_view_All-simulation-schematics-MUST-have-a-power-supply-too_4ke8qIZTb.htm>
in:
<https://easyeda.com/project_view_Spice-tutorials_AysKEWevN.htm>