I couldn’t find my data, then I realized it while checking this.
I accidentally deleted my data. 
The data needs to be restored.
I was searching how to restore this data and found out that you guys were giving me a free version thankfully.
please help me.
how can i find my deleted data?
get a Pro account/trial and look in Version History
unless you deleted the document entirely in which case maybe dynalist.io/feedback can help if you know its exact name