The section, {0}, was not locked in this module: {1}.
Explanation
The module cannot be locked for one of these reasons: 1. The module is not open in shareable or exclusive edit mode. 2. You do not have access to modify the module. 3. The module is partitioned. 4. Another user locked the module.
User response
If you do not have access to modify the module, contact an administrator. If another user locked the module, wait and try again.