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/ohlandtc/public_html/weather/_my_settings/settings.php
PWS_settings.php (176) $defaultlanguage=en-us $used_lang =de-dl $locale_wu=de-DE $lang_locale=de $lang_file=/home/ohlandtc/public_html/weather/languages/lang_de.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 (2088) include_once =>PWS_extra_data.php
PWS_extra_data.php (27) version =>PWS_extra_data.php|01|2023-07-14|
PWS_extra_data.php (30) include_once =>PWS_settings.php
PWS_extra_data.php (34) include_once =>PWS_shared.php
PWS_extra_data.php (59) processing: |snow_today|snow|0.00|!	# Snow for today you have entered, inches
PWS_extra_data.php (59) processing: |snow_yday|snow|0|!	# Yesterdays' snow value always in unit used for entering today value
PWS_extra_data.php (59) processing: |snow_season|snow|0|!	# Snow for season you have entered under input daily weather, inches
PWS_extra_data.php (59) processing: |snow_depth|snow|0.00|!		# Current snow depth, inches.
PWS_graph_xx.php (76) type set to wind from request wind
PWS_graph_xx.php (163) loading  =>./chartswudata/KMDLAYTO2YMD.txt
PWS_graph_xx.php (190)Line-names contains {"success":false,"error":"Data could not be loaded from WU
437