Error acquiring the state lock

Today is my first day using Terraforms for anything.
I am an Oracle DBA dabbling into DevOps.
Now i have my terraforms state file but i am not able to run terraform apply.
Each time i tried it shows the errors below:
Please how do fix this.
The file it is looking for is not in the directory

Error: Error acquiring the state lock

│ Error message: 2 errors occurred:
│ * Incorrect function.
│ * open The system cannot find the file specified.