# HADDOCK cannot continue due to failed structures in it0

**URL:** <https://ask.bioexcel.eu/t/haddock-cannot-continue-due-to-failed-structures-in-it0/370>\
**Category:** HADDOCK\
**Created:** [May 23, 2017, 10:05am UTC](https://ask.bioexcel.eu/t/haddock-cannot-continue-due-to-failed-structures-in-it0/370 "2017-05-23T10:05:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tulay](https://avatars.discourse-cdn.com/v4/letter/t/8e7dd6/32.png) [@tulay](https://ask.bioexcel.eu/u/tulay)\
**Post date:** [May 23, 2017, 10:05am UTC](https://ask.bioexcel.eu/t/haddock-cannot-continue-due-to-failed-structures-in-it0/370/1 "2017-05-23T10:05:35Z")

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Hi,

I used Easy interface of HADDOCK webserver for protein-protein docking and encountered a problem stated below;

HADDOCK cannot continue due to failed structures in it0  
HADDOCK could not copy failed structures from previous iteration  
The following structures could not be docked:  
[32, 33, 34, 35, 36, 37, 38, 39, 40]

What should I do to avoid this problem?  
Many thanks,  
Tülay

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**Author:** ![amjjbonvin](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/amjjbonvin/32/23_2.png) [@amjjbonvin](https://ask.bioexcel.eu/u/amjjbonvin)\
**Post date:** [May 23, 2017, 7:55pm UTC](https://ask.bioexcel.eu/t/haddock-cannot-continue-due-to-failed-structures-in-it0/370/2 "2017-05-23T19:55:35Z")

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Could be a glitch of the server… You might try again.

Alternatively, if you saved the haddockparameter file returned by the server right after submission, you can edit it to change the seed number - this might make it go through.

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**Author:** ![tulay](https://avatars.discourse-cdn.com/v4/letter/t/8e7dd6/32.png) [@tulay](https://ask.bioexcel.eu/u/tulay)\
**Post date:** [May 24, 2017, 12:34pm UTC](https://ask.bioexcel.eu/t/haddock-cannot-continue-due-to-failed-structures-in-it0/370/3 "2017-05-24T12:34:34Z")

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Thank you very much.