Hello,
I am a professional Drupal developer and consultant based in Moscow, Russia. Over the last 5 years, I have completed many Drupal 6,7 projects, including implementation of websites with complex modules and custom themes. I always focus on quality of my deliverables and produce a well-documented code compliant with common standards.
I am ready to give you a hand in completing Drupal site development and fixing issues you're facing (errors when content is saved). Can you share the URL of the site?
Looking forward to working with you on this project.
Thanks,
Alexey