The spacecraft is now 96 metres away from the station, and Vladimir Solovyev, flight director for the Russian segment of the ISS, said a new docking attempt would be made Monday.
In this photo distributed by Roscosmos Space Agency Press Service in July, the FEDOR robot is pictured before being loaded into a Soyuz capsule.
A Russian humanoid robot was making its way to the International Space Station (ISS) after blasting off on a two-week mission to support the crew and test his skills.
"It can be corrected", he said, adding that part of the equipment would be replaced and another attempt at docking made between 0500 GMT and 0600 GMT on Monday.
It was launched from Russia's Baikonur cosmodrome in Kazakhstan on Thursday and is set to arrive at the station on Saturday.
After the failure, which has been blamed on issues related to the automatic docking system, journalists were ushered out of Russian space agency Roskosmos' mission control, outside Moscow, where they were watching the docking, reports DW.
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Fedor was not the first robot sent into space.
A Russian spacecraft vaulted into Earth's orbit this week with a lone passenger: A life-sized, artificially intelligent, humanoid robot by the name of Fedor.
The setback means Fedor, which stands for Final Experimental Demonstration Object Research, will have to wait until Monday before joining astronauts, when the docking will be re-attempted.
Fedor is not the first robot to go into space.
Fedor has Instagram and Twitter accounts with posts saying it is learning new skills such as opening a bottle of water.
The United States sent a robot into space in 2011 with the aim of working in high-risk environments.
Soyuz MS-14 is carrying about 1,450 pounds of supplies.
"The craft was unable to lock onto its target at the station", and "backed a safe distance away from the orbital complex while the Russian flight controllers assess the next steps", NASA said.