Run Time Error ‘3050’ Could not lock file.

The "Runtime Error 3050 - Could not lock file" is a common error that occurs in Microsoft Access when there are issues with file permissions or the database file is already locked by another user or process. This error typically prevents multiple users from accessing the database simultaneously and can be caused by various factors. Here are some steps you can take to troubleshoot and resolve the issue
If error mesage show Run Time Error ‘3050’ Could not lock file follow the below steps: 
Step 1: Restart your system while disabling any temporary locks, if present.
Step 2: Check File Permissions Ensure that the folder where the Access database file .mdb is located has appropriate read/write permissions for all users who need access to the database. If the file is on a network drive, make sure that all users have appropriate network access rights.
Step 3: If someone has opened the database with exclusive operation then this can cause the error. Need to complete exclusive task first.
Step 4: Some antivirus or firewall software may block Access from creating the necessary lock files. Check your antivirus security software settings to ensure that it's not interfering with Access.
Step 5: If not solved through step 4 then Perform a reindexing from BUSY on the database to fix any potential corruption issues that might be causing the lock file error. To do this, go to the Company →Reindex Databases