upgrade: cannot create requirements

[alex_dacosta]

Hello

I did a migration from 1.6 to 1.8.5b and then to 1.9.3 (Prague)
A issued the following command MANUALLY:
ALTER TABLE testprojects DROP COLUMN option_reqs, DROP COLUMN option_priority, DROP COLUMN option_automation;

But I cannot create any requirement specification document: the right pane of the screen remains with the hits.

Other problem maybe related, while creating or opening a project, the description zone remains grey.

An idea to solve it?
(browser is firefox
Web server is Apache 2
mysql version is 5.1.23)

[alex_dacosta]

It works with IE but not with Firefox 11.0 which indicates:

--
[12:48:28,899] GET http://***/testlink/lib/general/frmWorkArea.php?feature=reqSpecMgmt [HTTP/1.1 200 OK 137ms]
[12:48:29,378] GET http://***/testlink/lib/requirements/reqSpecListTree.php [HTTP/1.1 200 OK 213ms]
[12:48:29,430] GET http://***/testlink/lib/general/staticPage.php?key=reqSpecMgmt [HTTP/1.1 200 OK 142ms]
[12:48:33,121] POST http://***/testlink/lib/ajax/getrequirementnodes.php?root_node=1458 [HTTP/1.1 200 OK 131ms]
[12:48:41,117] TPROJECT_REQ_SPEC_MGMT is not defined @ javascript:TPROJECT_REQ_SPEC_MGMT(1458):1

(address masked)

What is specific to Firefox?