There is thread about it here (Russian language), but you can use in-built
translation feature existing on the every post of the thread:
https://www.mql5.com/ru/forum/91406
Some posts from the thread -
Forum on trading, automated trading systems and testing trading strategies
Need help how to update MT5 terminal?
Rashid Umarov , 2019.11.28 08:29
This means that the version of your terminal is higher than the version on the validation server. Try compiling with the latest
official build.
Forum on trading, automated trading systems and testing trading strategies
Need help how to update MT5 terminal?
Mihail Matkovskij , 2019.11.28 11:41
All the same, group was to blame. Thanks for the help!
...Forum on trading, automated trading systems and testing trading strategies
Need help how to update MT5 terminal?
Mihail Matkovskij , 2019.11.29 21:24
Added a check for the maximum allowable volume taking into account all open orders and positions. Now the expert is validating. It turns out that on the account TRADE_RETCODE_LIMIT_VOLUME you hit the mark. Thanks for the help!
So, there are 3 errors/issues discussed on the thread (which the seller should fix) -
- terminal/build is higher than the build on the validation server (use last official build instead of using beta builds);
- grouping of input parameters (do not using grouping);
- you can try to check 10034 error (TRADE_RETCODE_LIMIT_VOLUME).

- 2016.07.15
- www.mql5.com
I've just tried to compile an indicator and submitting to the Marketplace, but the automatic validation process throw me that message...
Do anyone has a clue to what is happening?
Thanks in advance...
;)