There is a double quote at the end of the value read from the .env file

Developers frequently use the .env file to store configuration values on the workstation. If the values contain sensitive data add the line to the .gitignore file to avoid committing the file into source control.

.env

If the value contains spaces, enclose it in double quotes

DEBUG_COLUMN_NAME="x Debug"

Symptom

Your application reads a double quote at the end of the value:
gDebugColumnName: x Debug”

Issue

There is an extra space character at the end of the line after the closing double quote in the .env file

Solution

Delete all trailing spaces from the lines in the .env file.