Please consider the following points before posting a question:
Search the forum to check that your question has not been answered before.
Formulate your question carefully. If we cannot understand your question, we probably cannot help you.
If your question is about code-technical issues, please prepare a complete, but minimal example demonstrating the problem. Often the problem lies in incorrect usage or input data, and a copy of warnings or error messages is seldom sufficient to locate the problem.
Please provide the full stack trace when reporting errors: Send the entire red error text, not just the final error message. This allows us to see not just what the error us, but also where it occurs.
Please help out in answering questions from other users.
Have a little patience, especially during weekends. This is not a 24-7 emergency line.