Thanks for helping.
Clearing the cash did not help, however I found the log and is says:
com.mercury.optane.core.CTdException
Messages:
Failed to post ALL_LISTS values; handleCreateAction; Failed to create object of type: ALL_LISTS; Cannot create new 'TestFolder' in project 'qcob::test_project_2’ after 5 attempts.; Failed SQL: /* ~~QC */ INSERT INTO ALL_LISTS (AL_ITEM_ID,AL_VER_STAMP,AL_VTS,AL_MEMO,AL_ABSOLUTE_PATH,AL_SYSTEM,AL_FATHER_ID,AL_VIEW_ORDER,AL_DESCRIPTION) VALUES (/*P*/1006,0,/*P*/'2013-08-13 12:35:08',/*P*/'',/*P*/'AAAAAPAAA',/*P*/'A',/*P*/2,/*P*/0,/*P*/'Folder_NR_1) [Mercury][SQLServer JDBC Driver][SQLServer]Cannot insert duplicate key row in object 'td.ALL_LISTS' with unique index 'AL_ABSOLUTE_PATH_IDX'. The duplicate key value is (AAAAAPAAA).;
Stack Trace:
java.sql.SQLException: Failed SQL: /* ~~QC */ INSERT INTO ALL_LISTS (AL_ITEM_ID,AL_VER_STAMP,AL_VTS,AL_MEMO,AL_ABSOLUTE_PATH,AL_SYSTEM,AL_FATHER_ID,AL_VIEW_ORDER,AL_DESCRIPTION) VALUES (/*P*/1006,0,/*P*/'2013-08-13 12:35:08',/*P*/'',/*P*/'AAAAAPAAA',/*P*/'A',/*P*/2,/*P*/0,/*P*/'Folder_NR_1') [Mercury][SQLServer JDBC Driver][SQLServer]Cannot insert duplicate key row in object 'td.ALL_LISTS' with unique index 'AL_ABSOLUTE_PATH_IDX'. The duplicate key value is (AAAAAPAAA).
I thought something might be wrong with my user so I created another project using the Site Admin user and I actually was able to create two folders under the Subject folder. However, when I created folder number two the folders disappeared from the Subject folder. I logged out and inn and the two new folders were visible, however it is not possible to make a third folder.
When trying to make the third folder the error is different from the one a bow, now the log says:
Messages:
Failed to Post Simple Key Entity; Failed to post ALL_LISTS values; handleCreateAction; Failed to create object of type: ALL_LISTS; Cannot create new 'TestFolder' in project 'qcob::test_project_2' after 5 attempts.; Failed to build unique absolute path for entity of type 'ALL_LISTS' under father #2; Cannot convert string to code : too short;
I made a third project using the Admin User, and it was only possible to create one folder and I get the first error message again.
Unfortunately I am not very familiar with SQL so I will not be able to do any changes on the SQL server. However, thank you for trying to help, it is much appreciated.