[TYPO3-project-seminars] Error notice during the register process

[C. Wagner]

Hi,

I use the "seminar manager" (0.7.3) with "onentimeaccount"(0.6.0). It 
works fine but I get one problem:
when I click on "register" for an event, the page with the 
"onetimeaccount"-plugin and the following site (this with the summery of 
the register details ) appears with 3 error notices in the head:
*Warning*: mysql_fetch_assoc(): supplied argument is not a valid MySQL 
result resource in */pages/ ....  /t3lib/class.t3lib_db.php* on line *809*

*Warning*: mysql_free_result(): supplied argument is not a valid MySQL 
result resource in */pages/... /t3lib/class.t3lib_db.php* on line *836*

*Warning*: Cannot modify header information - headers already sent by 
(output started at /pages/... /t3lib/class.t3lib_db.php:809) in 
*/pages/.../typo3/sysext/cms/tslib/class.tslib_fe.php* on line *3226*

Nevertheless the process of register works. Only this ugly error notices 
and the css-styles are in some areas not right.

Do have anyone an idea?

Thanks

Carla