Failed to create new feature(s). General Function Failure [database error has occurred.]

Error Message

Attempts to create new features in a hosted feature layer in ArcGIS Pro fail, and return the following error message:

Error:   
Failed to create new feature(s). 
General function failure [Database error has occurred.]

Cause

The relational data store in which the hosted feature layer is stored is set to read-only. In most cases, the relational data store is automatically set to read-only due to insufficient disk space.

Solution or Workaround

To resolve the error, change the relational data store setting from read-only to read-write mode using the following workflow.

1. Open Windows Command Prompt as an administrator.
   1. Log in to the ArcGIS Data Store machine as an administrator.
   2. Right-click the Command Prompt app icon and select Run as administrator.
2. Navigate to the ArcGIS Data Store tools directory using the following command line:

cd C:\Program Files\ArcGIS\DataStore\tools

3. Ensure the relational data store is set to read-only. In the Command Prompt window, run the describedatastore utility.

C:\Program Files\ArcGIS\DataStore\tools>describedatastore

If the relational data store is in read-only mode, the prompt returns the following message:

4. Change the relational data store setting from read-only to read-write. In the Command Prompt window, run the changedatastoremode utility. Refer to Portal for ArcGIS: changedatastoremode for more information.

C:\Program Files\ArcGIS\DataStore\tools>changedatastoremode readwrite --store relational --prompt no

Note:
In ArcGIS Data Store versions prior to version 10.8.1, the command line in Step 4 reads as follows:

C:\Program Files\ArcGIS\DataStore\tools>changedatastoremode readwrite 

When prompted with Do you wish to continue (Yes or No)?, type Yes, and press Enter.

5. If the relational data store is automatically set to read-only due to low disk space, re-enable automatic backups. Run the updatebackupschedule utility. Insert the values for starttime and frequency in the command line. Refer to Portal for ArcGIS: updatebackupschedule for more information.

updatebackupschedule --starttime 23:00:00 --frequency 10