Hello, @abdul.kader.akeel89!
Some projects require a mandatory QA check. Once you run one and either correct or ignore (if applicable) all errors, you should be able to mark the task as completed! Here’s information on how to run a QA check.
Also make sure to have marked all segments as completed!
Here’s a link to TWB’s Translator’s Toolkit with useful information on how to work with the platform!
Wish you a lovely week! 