Category Archives: Computing
Problem: Plesk error email “Could not issue/renew Let’s Encrypt certificates for <user>” / contact email has invalid domain
One solution to resolving the Plesk admin error email message with the subject line above and contains the text: “Error validating contact(s) :: contact email has invalid domain: Domain name does not end with a valid public suffix (TLD) “
Posted in Computer Gremlins, Computing, Plesk
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Desktop computers with a Legacy PCI slot
A brief list of some recent desktop computers that still contain a legacy PCI slot.
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Fixing the WordPress error ‘sorry you are not allowed to access this page’
Problem symtoms: The solution:
Fixing Windows Subsystem for Linux error code 0x80370102 when virtualisation is enabled in the BIOS
Problem: Virtualisation is enabled in the BIOS but you still encounter Windows Subsystem for Linux error 0x80370102. Solution: Make sure that the hypervisor launch is enabled in your boot configuration. You can check this by typing in CMD (run as … Continue reading
Posted in Computer Gremlins, Computing, Linux, Windows
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W3C Validation Solutions
Converting traditional/old HTML code to CSS friendly alternatives to achieve W3C validation. Error: The frameborder attribute on the iframe element is obsolete. Use CSS instead. iframe { border: none; } Error: The cellspacing attribute on the table element is obsolete. … Continue reading
Posted in Computing, Web Development
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Windows Error 0x800700FF when trying to play a movie
System files could be corrupt – one possible solution to this problem:
Posted in Computer Gremlins, Computing, Windows, Windows 10
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Uploading a video to YouTube or Facebook freezes or stalls part way through upload and Chrome console shows ERR_HTTP2_PROTOCOL_ERROR – one possible fix:
The problem encountered: after trying to upload a video to YouTube or Facebook using a Windows 10 machine, the video upload freezes and gets stuck only a short way into the upload (eg. at the 5 or 10% mark) and … Continue reading
Posted in Computer Gremlins, Computing, Google Chrome, Windows, Windows 10
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Find out ink remaining on HP Deskjet 9800 series
An accurate way to find out the remaining ink in the cartridges is to print off a diagnostics sheet, which will include the ink remaining in each cartridge as a percentage (listed under LEFT CHUTE/RIGHT CHUTE on the printout).
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PHP RFC3339 date for Google Calendar API
$date = new DateTime(); echo $date->format(DATE_RFC3339);
Posted in Computing, PHP
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PHP Find end of the month/last day of month
<?php echo date(“t-m-Y”); ?> The ‘t’ option of date returns the number of days in the month.
Posted in Computing, PHP, Web Development
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