The response is not a valid JSON response when trying to save settings

Hi @marjons,

Could you please reach out to your hosting provider and have them enable all HTTP methods and see if it helps?

Thank you for your answer. I’ll ask them about it.

In the mean time here are the details from the site installation. Maybe that helps already to find out what could be the problem?

### wp-core ###

version: 6.0.1
site_language: nl_NL
user_language: nl_NL
timezone: +00:00
permalink: /%year%/%monthnum%/%day%/%postname%/
https_status: true
multisite: false
user_registration: 0
blog_public: 1
default_comment_status: undefined
environment_type: production
user_count: 6
dotorg_communication: true

### wp-paths-sizes ###

wordpress_path: /home/virtua01/domains/domain.com/public_html
wordpress_size: 57,56 MB (60359941 bytes)
uploads_path: /home/virtua01/domains/domain.com/public_html/wp-content/uploads
uploads_size: 20,26 MB (21240605 bytes)
themes_path: /home/virtua01/domains/domain.com/public_html/wp-content/themes
themes_size: 58,48 MB (61318665 bytes)
plugins_path: /home/virtua01/domains/domain.com/public_html/wp-content/plugins
plugins_size: 48,73 MB (51095775 bytes)
database_size: 80,02 MB (83902464 bytes)
total_size: 265,04 MB (277917450 bytes)

### wp-active-theme ###

name: Divi (Divi)
version: 4.17.6
author: Elegant Themes
author_website: https://www.elegantthemes.com
parent_theme: none
theme_features: core-block-patterns, block-templates, widgets-block-editor, custom-background, automatic-feed-links, post-thumbnails, menus, title-tag, post-formats, woocommerce, wc-product-gallery-zoom, wc-product-gallery-lightbox, wc-product-gallery-slider, customize-selective-refresh-widgets, wp-block-styles, editor-style, widgets
theme_path: /home/virtua01/domains/domain.com/public_html/wp-content/themes/Divi
auto_update: Uitgeschakeld

### wp-themes-inactive (1) ###

Twenty Twenty-Two: version: 1.2, author: the WordPress team, Auto-updates uitgeschakeld

### wp-mu-plugins (1) ###

ET Support Center :: Must-Use Plugins Autoloader: author: Elegant Themes, version: (undefined)

### wp-plugins-active (7) ###

Contact Form 7: version: 5.6.1, author: Takayuki Miyoshi, Auto-updates uitgeschakeld
Google Analytics for WordPress by MonsterInsights: version: 8.7.0, author: MonsterInsights, Auto-updates ingeschakeld
iThemes Security: version: 8.1.2, author: iThemes, Auto-updates uitgeschakeld
MainWP Child: version: 4.2.4, author: MainWP, Auto-updates uitgeschakeld
UpdraftPlus - Backup/Restore: version: 2.22.14.25, author: UpdraftPlus.Com, DavidAnderson, Auto-updates uitgeschakeld
Yoast Duplicate Post: version: 4.5, author: Enrico Battocchi & Team Yoast, Auto-updates uitgeschakeld
Yoast SEO: version: 19.4, author: Team Yoast, Auto-updates uitgeschakeld

### wp-media ###

image_editor: WP_Image_Editor_Imagick
imagick_module_version: 1808
imagemagick_version: ImageMagick 7.1.0-2 Q16 x86_64 2021-06-25 https://imagemagick.org
imagick_version: 3.5.1
file_uploads: File uploads is turned off
post_max_size: 32M
upload_max_filesize: 32M
max_effective_size: 32 MB
max_file_uploads: 20
imagick_limits: 
	imagick::RESOURCETYPE_AREA: 20 GB
	imagick::RESOURCETYPE_DISK: 9.2233720368548E+18
	imagick::RESOURCETYPE_FILE: 24576
	imagick::RESOURCETYPE_MAP: 20 GB
	imagick::RESOURCETYPE_MEMORY: 10 GB
	imagick::RESOURCETYPE_THREAD: 1
imagemagick_file_formats: 3FR, 3G2, 3GP, AAI, AI, APNG, ART, ARW, ASHLAR, AVI, AVS, BGR, BGRA, BGRO, BIE, BMP, BMP2, BMP3, BRF, CAL, CALS, CANVAS, CAPTION, CIN, CIP, CLIP, CMYK, CMYKA, CR2, CR3, CRW, CUBE, CUR, CUT, DATA, DCM, DCR, DCRAW, DCX, DDS, DFONT, DNG, DOT, DPX, DXT1, DXT5, EPDF, EPI, EPS, EPS2, EPS3, EPSF, EPSI, EPT, EPT2, EPT3, ERF, EXR, FARBFELD, FAX, FF, FILE, FITS, FL32, FLV, FRACTAL, FTP, FTS, G3, G4, GIF, GIF87, GRADIENT, GRAY, GRAYA, GROUP4, GV, HALD, HDR, HISTOGRAM, HRZ, HTM, HTML, HTTP, HTTPS, ICB, ICO, ICON, IIQ, INFO, INLINE, IPL, ISOBRL, ISOBRL6, J2C, J2K, JBG, JBIG, JNG, JNX, JP2, JPC, JPE, JPEG, JPG, JPM, JPS, JPT, JSON, K25, KDC, KERNEL, LABEL, M2V, M4V, MAC, MAP, MASK, MAT, MATTE, MEF, MIFF, MKV, MNG, MONO, MOV, MP4, MPC, MPEG, MPG, MRW, MSL, MSVG, MTV, MVG, NEF, NRW, NULL, ORA, ORF, OTB, OTF, PAL, PALM, PAM, PANGO, PATTERN, PBM, PCD, PCDS, PCL, PCT, PCX, PDB, PDF, PDFA, PEF, PES, PFA, PFB, PFM, PGM, PGX, PHM, PICON, PICT, PIX, PJPEG, PLASMA, PNG, PNG00, PNG24, PNG32, PNG48, PNG64, PNG8, PNM, POCKETMOD, PPM, PS, PS2, PS3, PSB, PSD, PTIF, PWP, RADIAL-GRADIENT, RAF, RAS, RAW, RGB, RGB565, RGBA, RGBO, RGF, RLA, RLE, RMF, RSVG, RW2, SCR, SCT, SFW, SGI, SHTML, SIX, SIXEL, SPARSE-COLOR, SR2, SRF, STEGANO, SUN, SVG, SVGZ, TEXT, TGA, THUMBNAIL, TIFF, TIFF64, TILE, TIM, TM2, TTC, TTF, TXT, UBRL, UBRL6, UIL, UYVY, VDA, VICAR, VID, VIFF, VIPS, VST, WBMP, WEBM, WEBP, WMF, WMV, WMZ, WPG, X, X3F, XBM, XC, XCF, XPM, XPS, XV, XWD, YAML, YCbCr, YCbCrA, YUV
gd_version: 2.2.5
gd_formats: GIF, JPEG, PNG, WebP, BMP, XPM
ghostscript_version: unknown

### wp-server ###

server_architecture: Linux 2.6.32-954.3.5.lve1.4.89.el6.x86_64 x86_64
httpd_software: Apache/2
php_version: 7.4.30 64bit
php_sapi: litespeed
max_input_variables: 1000
time_limit: 30
memory_limit: 256M
max_input_time: 60
upload_max_filesize: 32M
php_post_max_size: 32M
curl_version: 7.71.0 OpenSSL/1.1.1p
suhosin: false
imagick_availability: true
pretty_permalinks: true
htaccess_extra_rules: true

### wp-database ###

extension: mysqli
server_version: 10.3.35-MariaDB-cll-lve
client_version: mysqlnd 7.4.30
max_allowed_packet: 16777216
max_connections: 250

### wp-constants ###

WP_HOME: undefined
WP_SITEURL: undefined
WP_CONTENT_DIR: /home/virtua01/domains/domain.com/public_html/wp-content
WP_PLUGIN_DIR: /home/virtua01/domains/domain.com/public_html/wp-content/plugins
WP_MEMORY_LIMIT: 40M
WP_MAX_MEMORY_LIMIT: 256M
WP_DEBUG: false
WP_DEBUG_DISPLAY: true
WP_DEBUG_LOG: false
SCRIPT_DEBUG: false
WP_CACHE: false
CONCATENATE_SCRIPTS: undefined
COMPRESS_SCRIPTS: undefined
COMPRESS_CSS: undefined
WP_ENVIRONMENT_TYPE: Ongedefinieerd
DB_CHARSET: utf8mb4
DB_COLLATE: undefined

### wp-filesystem ###

wordpress: writable
wp-content: writable
uploads: writable
plugins: writable
themes: writable
mu-plugins: writable

Hi @marjons, thanks for sending your site info. May I know if you’ve heard back from your hosting provider about the HTTP methods?

Hi, yes I have, today actually.

It appears that the http method “OPTIONS” is disabled within the DirectAdmin. They say that it’s not being used within standard shared hosting and advised to remove the iThemes Security plug-in.

There seems to be no way to use the plug-in within this shared hosting environment, so I think I’ll need to follow that advice, since I cannot change any settings. It’s just the way it is then…

Hmmm, weird. According to DirectAdmin 10/21/19 Version 1.59.2 release notes:

Support http OPTIONS method

We’ve now added support for the OPTIONS method, which is essentially just an alias to HEAD for the time being, unless other controls are needed.

Hmm, maybe the host changed this setting only in their hosting environment?

Hi @marjons, another customer here uses a shared hosting but was able to enable the OPTIONS method: https://www.ads-software.com/support/topic/error-405-response-json-invalid-when-install/#post-15905721. Would you mind relaying this to your hosting provider? Hope this helps!

Hi, i have the same problem, but I have free hosting, supported methods: GET HEAD POST OPTIONS. what if I need to return the ability to edit installed theme? I understand that simply deleting your plugin will not work without any loss?

Hi, well, our hosting company advised against turning it on due to security reasons. I want to follow their advice, because it feels a bit weird to change a setting that could cause security problems for a security improvement plug-in.

Also, now I’ve deleted the iThemes Security plug-in, and installed the Wordfence plug-in as an extra security layer on their advice.

But thanks anyway to thinking along and your advice!