First, a clarification: There is no public "Beta 9" of the QualityWings 787. The final, stable release versions were (for FSX/P3D v3/v4) and later v1.4 (for P3D v4/v5). If you are seeing a "Beta 9 has expired" message, you are likely running an unofficial, leaked beta or an old, time-limited test build from before the official release (circa 2017-2018).
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While this may temporarily allow the gauges to load, it is . Changing your system date can cause issues with: SSL certificates for web browsing. beta 9 has expired qualitywings 787