No valid data file found, script ends

PWS_graph_xx.php(33) loaded  =>PWS_graph_xx.php|01|2021-05-15|
PWS_graph_xx.php (37) include_once  =>./PWS_livedata.php
PWS_livedata.php (22) version =>PWS_livedata.php|01|2023-10-31|
PWS_livedata.php (25) include_once =>PWS_settings.php
PWS_settings.php (28) version =>PWS_settings.php|01|2023-10-31|
PWS_settings.php (32) include =>/home/weather/public_html/pws/_my_settings/settings.php
PWS_settings.php (176) $defaultlanguage=en-us $used_lang =nl-be $locale_wu=nl-NL $lang_locale=nl $lang_file=/home/weather/public_html/pws/languages/lang_nl.txt
PWS_settings.php (285) $units_used =uk $windunit=mph $tempunit=C $rainunit=mm $pressureunit=hPa $distanceunit=mi $wu_unit=e
PWS_livedata.php (29) include_once =>PWS_shared.php
PWS_shared.php (21) version =>PWS_shared.php|01|2022-11-22|
PWS_livedata.php (39) $itsday =1
PWS_livedata.php (1964) WeatherFlow option used: Checking data ./jsondata/weatherflow.txt
PWS_livedata.php (1976) Processing ./jsondata/weatherflow.txt
PWS_graph_xx.php (76) type set to wind from request wind
PWS_graph_xx.php (163) loading  =>./chartswudata/KCTNEWIN8YMD.txt
PWS_graph_xx.php (190)Line-names contains {"success":false,"error":"Data could not be loaded from WU
437