There is a server problem with version 1.9.3. It's ok when I load 1.9.2.

Version: 1.51.0 (user setup)
Commit: fcac248b077b55bae4ba5bab613fd6e9156c2f0c
Date: 2020-11-05T18:18:23.642Z
Electron: 9.3.3
Chrome: 83.0.4103.122
Node.js: 12.14.1
V8: 8.3.110.13-electron.0
OS: Windows_NT x64 10.0.18363
This can happen when it doesn't properly install.
Try uninstalling it. You might need to delete it from the VS Code cache.
Any errors that show up in the extension host would be useful:

I tried reinstalling but the problem is still here with last version.
Here is the output of the extension:
[2020-11-10 19:08:39.602] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker {"startup":true,"extensionId":{"value":"streetsidesoftware.code-spell-checker-french-reforme","_lower":"streetsidesoftware.code-spell-checker-french-reforme"},"activationEvent":"*"}
[2020-11-10 19:08:39.602] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-1.9.3/dist/extension.js
[2020-11-10 19:08:40.487] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker-french-reforme {"startup":false,"extensionId":{"value":"streetsidesoftware.code-spell-checker-french-reforme","_lower":"streetsidesoftware.code-spell-checker-french-reforme"},"activationEvent":"*"}
[2020-11-10 19:08:40.488] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-french-reforme-0.1.6/out/src/extension
[2020-11-10 19:13:01.124] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker {"startup":true,"extensionId":{"value":"streetsidesoftware.code-spell-checker-french-reforme","_lower":"streetsidesoftware.code-spell-checker-french-reforme"},"activationEvent":"*"}
[2020-11-10 19:13:01.124] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-1.9.3/dist/extension.js
[2020-11-10 19:13:01.570] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker-french-reforme {"startup":false,"extensionId":{"value":"streetsidesoftware.code-spell-checker-french-reforme","_lower":"streetsidesoftware.code-spell-checker-french-reforme"},"activationEvent":"*"}
[2020-11-10 19:13:01.570] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-french-reforme-0.1.6/out/src/extension
[2020-11-10 19:13:43.741] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker {"startup":true,"extensionId":{"value":"streetsidesoftware.code-spell-checker","_lower":"streetsidesoftware.code-spell-checker"},"activationEvent":"*"}
[2020-11-10 19:13:43.741] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-1.9.3/dist/extension.js
[2020-11-10 19:14:28.599] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker {"startup":false,"extensionId":{"value":"streetsidesoftware.code-spell-checker","_lower":"streetsidesoftware.code-spell-checker"},"activationEvent":"*"}
[2020-11-10 19:14:28.599] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-1.9.3/dist/extension.js
[2020-11-10 19:14:40.989] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker-french-reforme {"startup":false,"extensionId":{"value":"streetsidesoftware.code-spell-checker-french-reforme","_lower":"streetsidesoftware.code-spell-checker-french-reforme"},"activationEvent":"*"}
[2020-11-10 19:14:40.989] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-french-reforme-0.1.6/out/src/extension
[2020-11-10 19:15:00.574] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker {"startup":true,"extensionId":{"value":"streetsidesoftware.code-spell-checker-french-reforme","_lower":"streetsidesoftware.code-spell-checker-french-reforme"},"activationEvent":"*"}
[2020-11-10 19:15:00.574] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-1.9.3/dist/extension.js
[2020-11-10 19:15:01.408] [exthost] [info] ExtensionService#_doActivateExtension streetsidesoftware.code-spell-checker-french-reforme {"startup":false,"extensionId":{"value":"streetsidesoftware.code-spell-checker-french-reforme","_lower":"streetsidesoftware.code-spell-checker-french-reforme"},"activationEvent":"*"}
[2020-11-10 19:15:01.408] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/arkay/.vscode/extensions/streetsidesoftware.code-spell-checker-french-reforme-0.1.6/out/src/extension
In the output of Code Spell Checker I have this:
internal/modules/cjs/loader.js:847
throw err;
^
Error: Cannot find module './c:/Users/arkay/Documents/cspell-dicts/packages/fr_FR_90/cspell-ext.json'
Require stack:
- c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\cspell-lib\dist\Settings\noop.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:844:17)
at resolveFileName (c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\resolve-from\index.js:29:39)
at resolveFrom (c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\resolve-from\index.js:43:9)
at Object.module.exports [as default] (c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\resolve-from\index.js:46:47)
at resolveFilename (c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\cspell-lib\dist\Settings\CSpellSettingsServer.js:253:38)
at c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\cspell-lib\dist\Settings\CSpellSettingsServer.js:68:22
at Array.map (<anonymous>)
at normalizeSettings (c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\cspell-lib\dist\Settings\CSpellSettingsServer.js:68:10)
at Object.getGlobalSettings (c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\node_modules\cspell-lib\dist\Settings\CSpellSettingsServer.js:268:16)
at Object.<anonymous> (c:\Users\arkay\.vscode\extensions\streetsidesoftware.code-spell-checker-1.9.3\server\server.js:32:71) {
code: 'MODULE_NOT_FOUND',
requireStack: [
'c:\\Users\\arkay\\.vscode\\extensions\\streetsidesoftware.code-spell-checker-1.9.3\\server\\node_modules\\cspell-lib\\dist\\Settings\\noop.js'
]
}
[Error - 08:27:47] Connection to server got closed. Server will not be restarted.
The problem I encountered is the same as described by @inwardmovement, including log output.
Uninstalling this extension and removing the $HOME/.vscode/extensions/streetsidesoftware.code-spell-checker-1.9.3 folder and reinstalling seems to solve this problem.
Uninstalling this extension and removing the
$HOME/.vscode/extensions/streetsidesoftware.code-spell-checker-1.9.3folder and reinstalling seems to solve this problem.
Unfortunately not for me
@inwardmovement In your case, it is not able to find the French dictionary:
c:/Users/arkay/Documents/cspell-dicts/packages/fr_FR_90/cspell-ext.json
Still, the server should NOT crash if the dictionary cannot be found.
Thanks for the fix.
When I load a file with spell check I have this error:

The link c:\Users\...\inwardmovement.github.io\c:\Users\...\cspell-dicts\packages\fr_FR_90\cspell-ext.json seems not correct, should I open another issue about that?
Most helpful comment
In the output of Code Spell Checker I have this: