custom ranking table with no points

I thought maybe I had to recalculate the scores and did so but the calculation interrupted with error. I disabled the custom ranking display by choosing default ranking in options and calculation was completed without an error. So I enabled wp-debug mode and the following error has been logged in wordpress:

Notice: Use of undefined constant FOOTBALLPOOL_TEXT_DOMAIN – assumed ‘FOOTBALLPOOL_TEXT_DOMAIN’ in /home/tamasha1/public_html/wp-content/plugins/fpextension/football-pool-add-match-result-to-user-page.php on line 27

Notice: Use of undefined constant FOOTBALLPOOL_TEXT_DOMAIN – assumed ‘FOOTBALLPOOL_TEXT_DOMAIN’ in /home/tamasha1/public_html/wp-content/plugins/fpextension/football-pool-add-match-result-to-user-page.php on line 37

Notice: Use of undefined constant FOOTBALLPOOL_TEXT_DOMAIN – assumed ‘FOOTBALLPOOL_TEXT_DOMAIN’ in /home/tamasha1/public_html/wp-content/plugins/fpextension/football-pool-extra-match-save-buttons.php on line 20

Notice: Use of undefined constant FOOTBALLPOOL_TEXT_DOMAIN – assumed ‘FOOTBALLPOOL_TEXT_DOMAIN’ in /home/tamasha1/public_html/wp-content/plugins/fpextension/football-pool-extra-match-save-buttons.php on line 30

I’m quite sure the error has nothing to do with the calculation error. because when I disable custom ranking display in plugin option the calculation goes through the end meanwhile the same error is being logged in wordpress.
Another issue is that the interruption takes at two different stages randomely. sometimes at recalculating scores (e.g. first stages) stage and sometimes at ranking tables stage (e.g. last stages)
the most odd thing is that it sometimes complete the calculation. The last calculation I did fixed the first problem of displaying points but I’m afraid it crashes again.

sorry for the long note. Thanks.

The notices in the log have nothing to do with the error in the calculation. In one of the latest versions I removed the text domain constant from the code because WP wants no constants in their new translation system. But the extensions still have references to the constant. I now updated the files on my dropbox. If you change all references for FOOTBALLPOOL_TEXT_DOMAIN in the extension files to 'football-pool' you get rid of the warnings.

Back to the error:

I disabled the custom ranking display by choosing default ranking in options and calculation was completed without an error.

This option should have no influence on the calculation as it is not used or called in the ranking. What is strange, is that your calculation stops at different stages in the process and even sometimes succeeds. That indicates that it is not a code error or settings/content error. Otherwise the calculation should stop at the same point everytime.
So my guess is that the error is caused by a timeout. You can try to lower the values for the calculation steps by putting the following values in your wp-config file:

define( 'FOOTBALLPOOL_CALC_STEPSIZE_MATCH', 100 );
define( 'FOOTBALLPOOL_CALC_STEPSIZE_QUESTION', 100 );
define( 'FOOTBALLPOOL_CALC_STEPSIZE_SCORE', 100 );
define( 'FOOTBALLPOOL_CALC_STEPSIZE_RANKING', 100 );

Or, if this does not solve the problem, maybe even lowering the values even more.