I use Keb F5 on lift, there is no error message but lift does not move

I may miss the point here. If the question is how to clear the error, page 57, item 4.7 Error Messages, of the KEB instruction manual may be of use. https://www.manualslib.com/manual/1293218/Keb-Combivert-F5.html?page=55#manual

Here is information about the error code:

KEB Error "E. OP"
ERROR overpotential (voltage)
1 Voltage in the DC-link cicuit is too high.
Occurs if the DC-link circuit voltage exceeds the permisible value.
Causes:
- poor controller adjustment (overshooting)
- input voltage too high
- interference voltages at the input
- deceleration ramp to short
- braking resistor defective or too small

Given the very technical nature of the KEB, I lean toward referring to the manufacturer's support. There are quite a number of KEB YouTube videos and a number of supporting documentations available on the web. Perhaps the following will be of use if not an entire misdirection: https://www.kebamerica.com/elevator-support/

https://www.kebamerica.com/products/f5-inverter/

Direct Support here
KEB F5 - kebamerica.com
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Purportedly pressing enter clears the error message. https://www.manualslib.com/manual/1293218/Keb-Combivert-F5.html?page=55#manual
The error means the "power circuit is not ready" according to the error code page. http://www.servotechnica.spb.ru/viewdocument/KEB_CD/manuals/f5/f5s/00f5subk250.pdf?page=33

The following page has the contact details for the company in the US as the last listing. http://www.servotechnica.spb.ru/viewdocument/KEB_CD/manuals/f5/f5s/00f5subk250.pdf?page=33

You can see on the manual.
If you have plan to have a diesel generator set, please refer to www.dieselgeneratortech.com

The KEB inverter does not have a "COM" error.

Where is this error being displayed?

Check your inverter baud rate, inverter address, communications cables and device that is being used to communicate.

General power stage failure.

Most likely will need to replace the power stage or inverter.

Via Combivis, write a value of -4 to Fr.01. This will set all parameters back to the factory default values.

Then download your backup parameter file.

at the first i want to know the error message appear after switch on the power on the drive with out any load or with load .

you can download the keb f5 manual from this site
http://www.keb.de/en/service-downloads/downloads.html

i have a prblem in the F5 keb combivert it's show Error
E.OC & E.puci & E.Puch could you please advice us with the proper solution
thanks