Import Problem with Total Import Pro

Hello, we are currently setting up our first Opencart shop and facing some problems with Total Import Pro
I can not import any Data, i always get this fail:
Does anybody have an idea what i have to change to make it work?

Thanks a lot in advance!

Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: copy(/var/customers/webs/Repac/werbegeschenke/system/logs/log.7): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1028Warning: copy(/var/customers/webs/Repac/werbegeschenke/system/logs/log.6): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1029Warning: copy(/var/customers/webs/Repac/werbegeschenke/system/logs/log.5): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1030Warning: copy(/var/customers/webs/Repac/werbegeschenke/system/logs/log.4): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1031Warning: copy(/var/customers/webs/Repac/werbegeschenke/system/logs/log.3): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1032Warning: copy(/var/customers/webs/Repac/werbegeschenke/system/logs/log.2): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1033Warning: copy(/var/customers/webs/Repac/werbegeschenke/system/logs/log.1): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1034Warning: file_put_contents(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/admin/controller/tool/total_import.php on line 1035Warning: fwrite() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 10Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fwrite() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 10Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fwrite() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 10Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fopen(/var/customers/webs/Repac/werbegeschenke/system/logs/hj_tip.log): failed to open stream: Permission denied in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 6Warning: fclose() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 14Warning: fwrite() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 10Warning: fwrite() expects parameter 1 to be resource, boolean given in /var/customers/webs/Repac/werbegeschenke/system/library/log.php on line 10{"updated":0,"added":3}

First of all you should talk with the creator of this extension.
Second it seems that you have a permission problem, see: Permission denied
Guess that some functions on this server are disabled (like at so many cheap hosters).