What does "can't wait symbols loaded" mean?

When I placed a stop order, it was rejected. The error log is, "
Instrument: EUR/USD; Order: Sell Stop 1; Status: Rejected; Reason: can't wait symbols loaded".

I don't know what it mean?

Hello fundboy,

What exact version and build number of MultiCharts are you running? (in MultiCharts go to Help tab-> About)
Which broker do you use?
Are you using manual trading or auto trading?
Is each your stop order rejected with this message?
Are you able to place the same order from the broker platform?

What exact version and build number of MultiCharts are you running? (in MultiCharts go to Help tab-> About)
MC.NET64 Version8.7 Release (Build 7470)
Which broker do you use?
LMAX Demo
Are you using manual trading or auto trading?
auto trading
Is each your stop order rejected with this message?
Yes
Are you able to place the same order from the broker platform?
I don't know.

Thanks for your answer.

LMAX API has been recently updated. Please update your MultiCharts to the latest version to utilize the latest API. After the update is done please try placing a manual order with the same parameters as it is generated by your auto trading. If the order is rejected - please let me know what is the reason of the reject.

Before update I place a test order manually. The order does not appear in orders tracker and there is no any error log. However, I can place order in broker's web platform. In MC.net, the chart show real data correctly, but the ask/bid data in trade bar is grey color.

I will update to the latest version and do test again.

Before update I place a test order manually. The order does not appear in orders tracker and there is no any error log.

Please make sure there are no filters applied to your Order and Position Tracker window.

However, I can place order in broker's web platform.

Have you placed the same EUR/USD Sell Stop 1 order with the price that your script generated in auto trading?