Seems your Windows was updated or you changed something in your computer (because the acyivation is per software per hardware).
So, you need to delete your purchase from Metatrader 5 and install it once again from same MT5.
read thread https://www.mql5.com/en/forum/436337 for details.
So, you need to delete your purchase from Metatrader 5 and install it once again from same MT5.
read thread https://www.mql5.com/en/forum/436337 for details.
About Expert Advisor Invalid License (538) Error
- 2022.11.14
- www.mql5.com
Hi there, I have activated my Windows 7 Ultimate SP1 operating system with official license of microsoft today...
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Upon the windows problems of Personal Computer, W-10 installed then download merta5 from (MetaTrader5 installed) www.mql5.com and reached REAL ACCOUNTS BUT META-5 could not RUN paid applications by reporting
(2023.09.15 14:28:37.708) (indicator / EA name ) (invalid license (538), please reinstall from MQL5 Market)
How can be solved this problem ?