I tried the other solutions to this problem but nothing worked in my case.
System:
Ubuntu 16.04
PHP 7.1.2-4
npm 3.10.8
VSCode 1.18.1
Extension PHP IntelliSense 2.0.1
Got a message: "The PHP Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted."
Opening the option Help > Toggle Developer Tools and the output is
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process disconnected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process connected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process disconnected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process connected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process disconnected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process connected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process disconnected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process connected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 [Extension Host] PHP process disconnected
/usr/share/code/resources/app/out/vs/workbench/workbench.main.js:9 The PHP Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted.
The Console (PHP Language) output is:
Parsing file:///home/00448406160/projetos/Development/Diakonia/vendor/autoload.php
[Info - 15:17:54] Connection to server got closed. Server will restart.
[Info - 15:17:55] 5891 files total
[Info - 15:17:55] Indexing project for definitions and static references
Parsing file:///home/00448406160/projetos/Development/Diakonia/vendor/autoload.php
[Error - 15:17:55] Connection to server got closed. Server will not be restarted.
Hard to tell without any kind of stack trace
I geht this while hovering some Classes while the parser runs:
[Info - 08:15:31] 73 Packages
[Info - 08:15:31] Restored php-di/php-di:5.4.0 from cache
[Info - 08:15:31] Restored php-di/invoker:1.3.3 from cache
[Info - 08:15:31] Restored php-di/phpdoc-reader:2.0.1 from cache
[Info - 08:15:31] Restored pimcore/installer-plugin:1.5 from cache
[Info - 08:15:31] Restored container-interop/container-interop:1.1.0 from cache
[Info - 08:15:31] Restored phpdocumentor/reflection-common:1.0 from cache
[Info - 08:15:31] Restored phpdocumentor/reflection-docblock:3.1.1 from cache
[Info - 08:15:31] Restored phpdocumentor/type-resolver:0.2 from cache
[Info - 08:15:31] Restored psr/log:1.0.2 from cache
[Info - 08:15:31] Restored vrana/adminer:4.2.5 from cache
[Info - 08:15:31] Restored linfo/linfo:3.0.1 from cache
[Info - 08:15:31] Restored geoip2/geoip2:2.4.4 from cache
[Info - 08:15:31] Restored tijsverkoyen/css-to-inline-styles:1.5.5 from cache
[Info - 08:15:31] Restored phpspec/prophecy:1.6.1 from cache
[Info - 08:15:31] Restored pear/net_url2:2.2.1 from cache
[Info - 08:15:32] Restored neitanod/forceutf8:2.0 from cache
[Info - 08:15:32] Restored google/apiclient:1.1.8 from cache
[Info - 08:15:32] Restored paragonie/random_compat:2.0.4 from cache
[Info - 08:15:32] Restored colinmollenhour/credis:1.7 from cache
[Error - 08:15:33] Connection to server got closed. Server will not be restarted.
[Error - 08:15:33] Request textDocument/hover failed.
Error: Connection got disposed.
at Object.dispose (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/main.js:825:25)
at Object.dispose (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/client.js:57:35)
at LanguageClient.handleConnectionClosed (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/client.js:1864:38)
at LanguageClient.handleConnectionClosed (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/main.js:106:15)
at closeHandler (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/client.js:1852:18)
at CallbackList.invoke (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:71:39)
at Emitter.fire (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:135:36)
at closeHandler (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/main.js:221:26)
at CallbackList.invoke (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:71:39)
at Emitter.fire (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:135:36)
[Error - 08:15:33] Request textDocument/hover failed.
Error: Connection got disposed.
at Object.dispose (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/main.js:825:25)
at Object.dispose (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/client.js:57:35)
at LanguageClient.handleConnectionClosed (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/client.js:1864:38)
at LanguageClient.handleConnectionClosed (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/main.js:106:15)
at closeHandler (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-languageclient/lib/client.js:1852:18)
at CallbackList.invoke (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:71:39)
at Emitter.fire (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:135:36)
at closeHandler (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/main.js:221:26)
at CallbackList.invoke (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:71:39)
at Emitter.fire (/home/cjung/.vscode/extensions/felixfbecker.php-intellisense-2.0.1/node_modules/vscode-jsonrpc/lib/events.js:135:36)
BTW: I set the Memlimit to 4G, everything is fine :+1:
Still, the error reporting does strange things:

Hard to tell without any kind of stack trace
Any tips on how I can get more detailed information?
I'm getting this same error on a Laravel 5.5 project, PHP 7.2 and High Sierra
Should I open a new issue? Thanks.
Message from the Developer Tools:
Call to a member function isStatic() on null
.vscode/extensions/felixfbecker.php-intellisense-2.0.3/vendor/felixfbecker/language-server/src/TreeAnalyzer.php:102
Probably crashes on (but seems unlikely):
/routes/console.php (File unedited)
Maybe related to #311 and #336. Set memory to 512M. PHP Language Server is looping parsing all files (infinite loop).
"php.memoryLimit": "4G" works
Most helpful comment
BTW: I set the Memlimit to 4G, everything is fine :+1:
Still, the error reporting does strange things: