Update to 3.9.16 failing before it starts - joomla3.0

I'm running Joomla 3.9.15. I'm trying to update to 3.9.16. PHP is 7.3.15.
I have tried updating from the home page and under components. I have also tried to update by uploading the patch file. In either case, Joomla reports a 500 error before even starting.
The akeeba backup before update is enabled but I disabled it and get the same 500 error.
I also used Akeeba tools to set fix permissions that did not help either.
I looked at the logs but could not find anything there that would help. I also enabled debug but nothing was reported there either.
Any help would be appreciated.
Carter

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Solr SolrCore Initialization Failures {{Core}}: {{error}}

All,
I am trying to install Solr 7.2.1. While the installation works, i am not able to run solr successfully. Whenever i try to run, i get the following error.
SolrCore Initialization Failures {{core}}: {{error}}
Please check your logs for more information
I am not sure exactly what the error is. i dont see anything in the logs either. all i see are are some info.
Please advice.
cmd solr.cmd start
or cmd solr.cmd stop -p 8983
doesn't have any issues.
i am running solr in 8982 port instead of the usual 8983. not sure if that makes a difference.
As mentioned by others, this problem is related to the javascript interface not related to the solr server. The same thing happened to me in Chrome. Clearing the site data worked for me.
Clear site data by opening developer tools and going to Application -> clear storage
Important Note:
The usage was 0B before and after clearing the site data but after clearing the site data solr home page came up without any error.
CTRL + F5 did the trick for me :-)
The issue is with the IE only, I have faced the same error. There was nothing in the logs as well. I finally Enabled the JavaScript for IE, Closed all the browser instance and tried again. And it is working perfectly fine for me.
Please refer below image for the reference.

Deployed EAR is missing in the weblogic console menu

A weblogic application which is working fine, But on redeploying the .EAR file an error arises mentioning that .EAR file are already existing. On viewing weblogic console menu deployed, It shows no deployed .EAR.
Missing EAR File from Console Menu
This is peculiar, according to you, the application is working fine if that's the case then there should be something deployed on the server, but from the pic, I can't see anything.
This could probably because of the customize table option, it could be possible that you wouldn't have selected any of the available options.
If this problem arises after redeploying, then there is something wrong with the redeployed .ear. If by redeploying, you have just updated the .ear then it's mostly a problem with your .ear, if you have deleted and re-installed the .ear then you should probably check your config.xml file before and after the redeploy. And do check for your server logs when you are redeploying the .ear, that in itself should give a great deal of info.
Please do update your question with the server logs so that it would be easy for me (or others) to debug and help you out, and give an appropriate answer.

Visual Studio Code - Type Script - Unable to load tsconfig.json and packages.json schemas

I'm working on an Angular front end in Visual Studio Code for an app with a C# windows service back end. After spending a few days on the back end without touching the front end, I found that Visual Studio Code would no longer automatically recompile my typescript code every time I saved. Instead, I would have to ctrl+c out of the process and run "npm start" again.
I ensured that compileOnSave was set to true in my tsconfig.json. In doing so, I notice a warning:
Problems loading reference 'http://json.schemastore.org/tsconfig': Unable to load schema from 'http://json.schemastore.org/tsconfig': Unable to to connect to http://json.schemastore.org/tsconfig. Error: getaddrinfo ENOTFOUND json.schemastore.org json.schemastore.org:80
I noticed a similar warning for packages.json. I'm able to load the schema on the links on Google Chrome.
What could be a possible fix? Could I download the schema and load it in Visual Studio Code manually?
For me it wasn't the proxy blocking, but trusted domain list in VSCode.
Go to "Manage trusted domains" on Command Palette and add required url. Here we can add "http://json.schemastore.org"
This is whitelist for VSCode, as a security feature, stopping it running code from anywhere from internet.
Update:
Seems a network issue for me. When I set Http: proxy correctly it disappeared and json schema works well.
Go to "Settings" > "JSON" > "Schema Download" and disabled it.
That's worked for me.
The solution, as pointed out by #Matt Bierner in the comment above, is to set the "$schema" key to direct to a local schema file (which can be downloaded from the address in the error).
The problem seems to be caused by a web proxy. Why it showed up now is still unknown.
just follow these simple steps
click on the Settings icon at the bottom left of your vscode
search for JSON
you should see the schema download, it should be enabled
just turn it off
This worked for me.

Cannot log in to Drupal site

I have a VM that I set up to do development on two sites hosted on Acquia with the same codebase. I'm using version Drupal 7.26. I have it where I can access both sites from the host computer, but when I try to log in using /user/login on either site, I get nothing. The POST returns a 404 containing the log in page again.
I've tried settings $cookie_domain = '.my-site.dev' as well as $cookie = 'www.mysite.dev'. Neither has any effect. I also tried adding a bunch of random charactersto the file to make sure I was editing the correct file; with the random characters, pages didn't load at all. (See https://www.drupal.org/node/611920#comment-3110010.)
I also tried doing repair table sessions. I forgot which site I saw that recommendation from. I also tried delete from sessions just for kicks. Neither worked.
Any ideas? Thanks!
edit: Per https://www.drupal.org/node/261411#comment-3182566, I tried to go to www.mysite.dev/?q=user/login. This did not give me a 404, but I had tried (unsuccessfully, it seems) to reset my password through the database. I'm at least getting an error about a bad username/password combination rather than nothing at all. Still, I would think /user/login should have worked, too.
edit 2: The production site uses CAS, but logging in through /user/login still works.

New to CakePHP: Need help setting up error log

I'm new to CakePHP. I'm getting an internal server error in my app, but I haven't been able to locate my error log. I looked at the official docs, but I didn't find anything on what the log file is named or where I could find it. I'm not even sure whether error logging is enabled by default. Any help you can offer is appreciated. Thanks.
Look in your /app/tmp/logs/ folder, the file name should be error.log
I believe it is enabled by default, at least when debug is set to 2 in /app/Config/core.php.
Configure::write('debug', 2);

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