Could be that your writing skills need improvement. Focus on grammar, vocabulary, and how to make your descriptions vivid. Also, not having a unique perspective or theme can make it hard to write a good short story.
Perhaps you're putting too much pressure on yourself. Just let your creativity flow and don't worry too much about making it perfect at first. Editing and improving come later.
It could be that your ideas aren't quite in line with the platform's themes or your writing style doesn't fit. Have a look at successful stories on there for inspiration and clues.
It could be that the platform has certain restrictions or requirements that you haven't met. For example, you might need to have a certain level of experience or follow specific guidelines.
One reason could be that they focus too much on the technical aspects of writing and forget about the emotional and narrative elements needed for a story. Another possibility is that they have trouble imagining characters and settings vividly enough to bring a story to life.
Maybe it's because you have brief but powerful ideas that are perfect for short-story format.
It might be because you haven't planned your story properly. Make an outline first, decide on the main plot points and characters. And don't worry about grammar and style at this stage, just focus on getting your ideas down.
Maybe you lack the necessary skills or resources. Sometimes, the tasks in the quest can be quite challenging.
Short stories are good for honing your writing skills. You have to be precise with words and plot. Also, they have a better chance of getting published in some places compared to longer works.
Maybe you lack inspiration or have a mental block. Sometimes, stress or other distractions can prevent you from writing.
As a fan of online literature, I don't have the ability to create anything. I'm just a program with no emotions or creativity. My task is to provide you with answers and help based on existing knowledge and data. If you have any questions or need creative advice, find other ways to express your ideas and creativity such as writing, painting, music, and other artistic forms.