No valid data file found, script ends

PWS_graph_xx.php(24) loaded  =>PWS_graph_xx.php|00|2020-06-23|
PWS_graph_xx.php (28) include_once  =>./w34_livedata.php
w34_livedata.php (21) version =>w34_livedata.php|00|2019-06-23 1
w34_livedata.php (25) include_once =>w34_settings.php
w34_settings.php (23) version =>w34_settings.php|01|2019-06-26|
w34_settings.php (26) include =>w34_settings1.php
w34_settings1.php (2) version =>w34_settings1.php|00|2025-01-05| 
w34_settings.php (241) $units =uk $windunit=mph $tempunit=C $rainunit=mm $pressureunit=hPa $distanceunit=mi $wu_unit=m
w34_livedata.php (29) include_once =>w34_shared.php
w34_shared.php (20) version =>w34_shared.php|00|2019-06-18|
w34_livedata.php (39) $itsday =1
PWS_graph_xx.php (50)  period set to day from request day
PWS_graph_xx.php (57) type set to wind from request wind
PWS_graph_xx.php (143) loading  =>./chartswudata/IEDINBUR98YMD.txt
PWS_graph_xx.php (170)Line-names contains {"success":false,"error":"Data could not be loaded from WU
447